diff --git a/app/services/proofing/resolution/result.rb b/app/services/proofing/resolution/result.rb
index 8a46a99bb92..f8d07ea6398 100644
--- a/app/services/proofing/resolution/result.rb
+++ b/app/services/proofing/resolution/result.rb
@@ -22,7 +22,8 @@ def initialize(
         reference: '',
         failed_result_can_pass_with_additional_verification: false,
         attributes_requiring_additional_verification: [],
-        vendor_workflow: nil
+        vendor_workflow: nil,
+        verified_attributes: nil
       )
         @success = success
         @errors = errors
@@ -35,6 +36,7 @@ def initialize(
         @attributes_requiring_additional_verification =
           attributes_requiring_additional_verification
         @vendor_workflow = vendor_workflow
+        @verified_attributes = verified_attributes
       end
 
       def success?
diff --git a/app/services/proofing/socure/id_plus/config.rb b/app/services/proofing/socure/id_plus/config.rb
new file mode 100644
index 00000000000..1bfaa21ac90
--- /dev/null
+++ b/app/services/proofing/socure/id_plus/config.rb
@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+module Proofing
+  module Socure
+    module IdPlus
+      Config = RedactedStruct.new(
+        :api_key,
+        :base_url,
+        :timeout,
+        keyword_init: true,
+        allowed_members: [
+          :base_url,
+          :timeout,
+        ],
+      ).freeze
+  end
+end
+end
diff --git a/app/services/proofing/socure/id_plus/input.rb b/app/services/proofing/socure/id_plus/input.rb
new file mode 100644
index 00000000000..28070fc51f2
--- /dev/null
+++ b/app/services/proofing/socure/id_plus/input.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+module Proofing
+  module Socure
+    module IdPlus
+      Input = RedactedStruct.new(
+        :address1,
+        :address2,
+        :city,
+        :dob,
+        :first_name,
+        :last_name,
+        :middle_name,
+        :state,
+        :zipcode,
+        :phone,
+        :email,
+        :ssn,
+        keyword_init: true,
+      ).freeze
+    end
+  end
+end
diff --git a/app/services/proofing/socure/id_plus/proofer.rb b/app/services/proofing/socure/id_plus/proofer.rb
new file mode 100644
index 00000000000..91edb4c4300
--- /dev/null
+++ b/app/services/proofing/socure/id_plus/proofer.rb
@@ -0,0 +1,96 @@
+# frozen_string_literal: true
+
+module Proofing
+  module Socure
+    module IdPlus
+      class Proofer
+        attr_reader :config
+
+        VENDOR_NAME = 'socure_kyc'
+
+        VERIFIED_ATTRIBUTE_MAP = {
+          address: %i[streetAddress city state zip].freeze,
+          first_name: :firstName,
+          last_name: :surName,
+          phone: :mobileNumber,
+          ssn: :ssn,
+          dob: :dob,
+        }.freeze
+
+        REQUIRED_ATTRIBUTES = %i[
+          first_name
+          last_name
+          address
+          dob
+          ssn
+        ].to_set.freeze
+
+        # @param [Proofing::Socure::IdPlus::Config] config
+        def initialize(config)
+          @config = config
+        end
+
+        # @param [Hash] applicant
+        # @return [Proofing::Resolution::Result]
+        def proof(applicant)
+          input = Input.new(applicant)
+
+          request = Request.new(config:, input:)
+
+          response = request.send_request
+
+          build_result_from_response(response)
+        rescue Proofing::TimeoutError, RequestError => err
+          build_result_from_error(err)
+        end
+
+        private
+
+        # @param [Proofing::Socure::IdPlus::Response] response
+        def all_required_attributes_verified?(response)
+          (REQUIRED_ATTRIBUTES - verified_attributes(response)).empty?
+        end
+
+        def build_result_from_error(err)
+          Proofing::Resolution::Result.new(
+            success: false,
+            errors: {},
+            exception: err,
+            vendor_name: VENDOR_NAME,
+            transaction_id: err.respond_to?(:reference_id) ? err.reference_id : nil,
+          )
+        end
+
+        # @param [Proofing::Socure::IdPlus::Response] response
+        # @return [Proofing::Resolution::Result]
+        def build_result_from_response(response)
+          Proofing::Resolution::Result.new(
+            success: all_required_attributes_verified?(response),
+            errors: reason_codes_as_errors(response),
+            exception: nil,
+            vendor_name: VENDOR_NAME,
+            verified_attributes: verified_attributes(response),
+            transaction_id: response.reference_id,
+          )
+        end
+
+        # @param [Proofing::Socure::IdPlus::Response] response
+        # @return [Hash]
+        def reason_codes_as_errors(response)
+          {
+            reason_codes: response.kyc_reason_codes.sort,
+          }
+        end
+
+        # @param [Proofing::Socure::IdPlus::Response] response
+        def verified_attributes(response)
+          VERIFIED_ATTRIBUTE_MAP.each_with_object([]) do |(attr_name, field_names), result|
+            if Array(field_names).all? { |f| response.kyc_field_validations[f] }
+              result << attr_name
+            end
+          end.to_set
+        end
+      end
+    end
+  end
+end
diff --git a/app/services/proofing/socure/id_plus/request.rb b/app/services/proofing/socure/id_plus/request.rb
new file mode 100644
index 00000000000..d15591eb2aa
--- /dev/null
+++ b/app/services/proofing/socure/id_plus/request.rb
@@ -0,0 +1,152 @@
+# frozen_string_literal: true
+
+module Proofing
+  module Socure
+    module IdPlus
+      class RequestError < StandardError
+        def initialize(wrapped)
+          @wrapped = wrapped
+          super(build_message)
+        end
+
+        def reference_id
+          return @reference_id if defined?(@reference_id)
+          @reference_id = response_body.is_a?(Hash) ?
+            response_body['referenceId'] :
+            nil
+        end
+
+        def response_body
+          return @response_body if defined?(@response_body)
+          @response_body = wrapped.try(:response_body)
+        end
+
+        def response_status
+          return @response_status if defined?(@response_status)
+          @response_status = wrapped.try(:response_status)
+        end
+
+        private
+
+        attr_reader :wrapped
+
+        def build_message
+          message = response_body.is_a?(Hash) ? response_body['msg'] : nil
+          message ||= wrapped.message
+          status = response_status ? " (#{response_status})" : ''
+          [message, status].join('')
+        end
+      end
+
+      class Request
+        attr_reader :config, :input
+
+        SERVICE_NAME = 'socure_id_plus'
+
+        # @param [Proofing::Socure::IdPlus::Config] config
+        # @param [Proofing::Socure::IdPlus::Input] input
+        def initialize(config:, input:)
+          @config = config
+          @input = input
+        end
+
+        def send_request
+          conn = Faraday.new do |f|
+            f.request :instrumentation, name: 'request_metric.faraday'
+            f.response :raise_error
+            f.response :json
+            f.options.timeout = config.timeout
+            f.options.read_timeout = config.timeout
+            f.options.open_timeout = config.timeout
+            f.options.write_timeout = config.timeout
+          end
+
+          Response.new(
+            conn.post(url, body, headers) do |req|
+              req.options.context = { service_name: SERVICE_NAME }
+            end,
+          )
+        rescue Faraday::BadRequestError,
+               Faraday::ConnectionFailed,
+               Faraday::ServerError,
+               Faraday::SSLError,
+               Faraday::TimeoutError,
+               Faraday::UnauthorizedError => e
+
+          if timeout_error?(e)
+            raise ::Proofing::TimeoutError,
+                  'Timed out waiting for verification response'
+          end
+
+          raise RequestError, e
+        end
+
+        def body
+          @body ||= {
+            modules: ['kyc'],
+            firstName: input.first_name,
+            surName: input.last_name,
+            country: 'US',
+
+            physicalAddress: input.address1,
+            physicalAddress2: input.address2,
+            city: input.city,
+            state: input.state,
+            zip: input.zipcode,
+
+            nationalId: input.ssn,
+            dob: input.dob&.to_date&.to_s,
+
+            userConsent: true,
+            consentTimestamp: 5.minutes.ago.iso8601,
+
+            email: input.email,
+            mobileNumber: input.phone,
+
+            # > The country or jurisdiction from where the transaction originates,
+            # > specified in ISO-2 country codes format
+            countryOfOrigin: 'US',
+          }.to_json
+        end
+
+        def headers
+          @headers ||= {
+            'Content-Type' => 'application/json',
+            'Authorization' => "SocureApiKey #{config.api_key}",
+          }
+        end
+
+        def url
+          @url ||= URI.join(
+            config.base_url,
+            '/api/3.0/EmailAuthScore',
+          ).to_s
+        end
+
+        private
+
+        # @param [Faraday::Error] err
+        def faraday_error_message(err)
+          message = begin
+            err.response[:body].dig('msg')
+          rescue
+            'HTTP request failed'
+          end
+
+          status = begin
+            err.response[:status]
+          rescue
+            'unknown status'
+          end
+
+          "#{message} (#{status})"
+        end
+
+        def timeout_error?(err)
+          err.is_a?(Faraday::TimeoutError) ||
+            (err.is_a?(Faraday::ConnectionFailed) && err.wrapped_exception.is_a?(Net::OpenTimeout))
+        end
+      end
+    end
+  end
+end
diff --git a/app/services/proofing/socure/id_plus/response.rb b/app/services/proofing/socure/id_plus/response.rb
new file mode 100644
index 00000000000..085e21c58dd
--- /dev/null
+++ b/app/services/proofing/socure/id_plus/response.rb
@@ -0,0 +1,41 @@
+# frozen_string_literal: true
+
+module Proofing
+  module Socure
+    module IdPlus
+      class Response
+        # @param [Faraday::Response] http_response
+        def initialize(http_response)
+          @http_response = http_response
+        end
+
+        # @return [Hash<Symbol,Boolean>]
+        def kyc_field_validations
+          @kyc_field_validations ||= kyc('fieldValidations').
+            each_with_object({}) do |(field, valid), obj|
+              obj[field.to_sym] = valid.round == 1
+            end.freeze
+        end
+
+        # @return [Set<String>]
+        def kyc_reason_codes
+          @kyc_reason_codes ||= kyc('reasonCodes').to_set.freeze
+        end
+
+        def reference_id
+          http_response.body['referenceId']
+        end
+
+        private
+
+        attr_reader :http_response
+
+        def kyc(*fields)
+          kyc_object = http_response.body['kyc']
+          raise 'No kyc section on response' unless kyc_object
+          kyc_object.dig(*fields)
+        end
+      end
+    end
+  end
+end
diff --git a/spec/services/proofing/socure/id_plus/input_spec.rb b/spec/services/proofing/socure/id_plus/input_spec.rb
new file mode 100644
index 00000000000..ba709a98f5b
--- /dev/null
+++ b/spec/services/proofing/socure/id_plus/input_spec.rb
@@ -0,0 +1,38 @@
+require 'rails_helper'
+
+RSpec.describe Proofing::Socure::IdPlus::Input do
+  let(:user) { build(:user) }
+
+  let(:state_id) do
+    Idp::Constants::MOCK_IDV_APPLICANT_WITH_PHONE
+  end
+
+  subject do
+    described_class.new(
+      **state_id.to_h.slice(*described_class.members),
+      email: user.email,
+    )
+  end
+
+  it 'creates an appropriate instance' do
+    expect(subject.to_h).to eql(
+      {
+        address1: '1 FAKE RD',
+        address2: nil,
+        city: 'GREAT FALLS',
+        state: 'MT',
+        zipcode: '59010-1234',
+
+        first_name: 'FAKEY',
+        last_name: 'MCFAKERSON',
+        middle_name: nil,
+
+        dob: '1938-10-06',
+
+        phone: '12025551212',
+        ssn: '900-66-1234',
+        email: user.email,
+      },
+    )
+  end
+end
diff --git a/spec/services/proofing/socure/id_plus/proofer_spec.rb b/spec/services/proofing/socure/id_plus/proofer_spec.rb
new file mode 100644
index 00000000000..97e3d3a1bd6
--- /dev/null
+++ b/spec/services/proofing/socure/id_plus/proofer_spec.rb
@@ -0,0 +1,287 @@
+require 'rails_helper'
+
+RSpec.describe Proofing::Socure::IdPlus::Proofer do
+  let(:config) do
+  end
+
+  let(:proofer) do
+    described_class.new(config)
+  end
+
+  let(:applicant) do
+    {}
+  end
+
+  let(:api_key) { 'super-$ecret' }
+
+  let(:base_url) { 'https://example.org/' }
+
+  let(:config) do
+    Proofing::Socure::IdPlus::Config.new(
+      api_key:,
+      base_url:,
+    )
+  end
+
+  let(:result) do
+    proofer.proof(applicant)
+  end
+
+  let(:response_status) { 200 }
+
+  let(:field_validation_overrides) { {} }
+
+  let(:response_body) do
+    {
+      'referenceId' => 'a-really-unique-id',
+      'kyc' => {
+        'reasonCodes' => [
+          'I919',
+          'I914',
+          'I905',
+        ],
+        'fieldValidations' => {
+          'firstName' => 0.99,
+          'surName' => 0.99,
+          'streetAddress' => 0.99,
+          'city' => 0.99,
+          'state' => 0.99,
+          'zip' => 0.99,
+          'mobileNumber' => 0.99,
+          'dob' => 0.99,
+          'ssn' => 0.99,
+        }.merge(field_validation_overrides),
+      },
+    }
+  end
+
+  before do
+    using_json = !response_body.is_a?(String)
+
+    stub_request(:post, URI.join(base_url, '/api/3.0/EmailAuthScore').to_s).
+      to_return(
+        status: response_status,
+        headers: {
+          'Content-Type' => using_json ?
+            'application/json' :
+            'text/html',
+        },
+        body: using_json ? JSON.generate(response_body) : response_body,
+      )
+  end
+
+  it 'reports reason codes as errors' do
+    expect(result.errors).to eql(
+      {
+        reason_codes: [
+          'I905',
+          'I914',
+          'I919',
+        ],
+      },
+    )
+  end
+
+  context 'when user is 100% matched' do
+    it 'returns a resolution result' do
+      expect(result).to be_an_instance_of(Proofing::Resolution::Result)
+    end
+
+    describe 'the result' do
+      it 'is successful' do
+        expect(result.success).to eql(true)
+      end
+
+      it 'has a vendor name' do
+        expect(result.vendor_name).to eql('socure_kyc')
+      end
+
+      it 'has a transaction id' do
+        expect(result.transaction_id).to eql('a-really-unique-id')
+      end
+
+      it('has verified attributes') do
+        expect(result.verified_attributes).to eql(
+          %i[
+            first_name
+            last_name
+            address
+            phone
+            dob
+            ssn
+          ].to_set,
+        )
+      end
+    end
+  end
+
+  context 'when parts of address do not match' do
+    context '(streetAddress)' do
+      let(:field_validation_overrides) { { 'streetAddress' => 0.01 } }
+      it 'is not successful' do
+        expect(result.success).to eql(false)
+      end
+      it 'address is not verified' do
+        expect(result.verified_attributes).not_to include(:address)
+      end
+    end
+    context '(city)' do
+      let(:field_validation_overrides) { { 'city' => 0.01 } }
+      it 'is not successful' do
+        expect(result.success).to eql(false)
+      end
+      it 'address is not verified' do
+        expect(result.verified_attributes).not_to include(:address)
+      end
+    end
+    context '(state)' do
+      let(:field_validation_overrides) { { 'state' => 0.01 } }
+      it 'is not successful' do
+        expect(result.success).to eql(false)
+      end
+      it 'address is not verified' do
+        expect(result.verified_attributes).not_to include(:address)
+      end
+    end
+    context '(zip)' do
+      let(:field_validation_overrides) { { 'zip' => 0.01 } }
+      it 'is not successful' do
+        expect(result.success).to eql(false)
+      end
+      it 'address is not verified' do
+        expect(result.verified_attributes).not_to include(:address)
+      end
+    end
+  end
+
+  context 'when dob does not match' do
+    let(:field_validation_overrides) { { 'dob' => 0.01 } }
+    it 'is not successful' do
+      expect(result.success).to eql(false)
+    end
+    it 'address is not verified' do
+      expect(result.verified_attributes).not_to include(:dob)
+    end
+  end
+
+  context 'when ssn does not match' do
+    let(:field_validation_overrides) { { 'ssn' => 0.01 } }
+    it 'is not successful' do
+      expect(result.success).to eql(false)
+    end
+    it 'address is not verified' do
+      expect(result.verified_attributes).not_to include(:ssn)
+    end
+  end
+
+  context 'when request times out' do
+    before do
+      stub_request(:post, URI.join(base_url, '/api/3.0/EmailAuthScore').to_s).
+        to_timeout
+    end
+
+    describe 'the result' do
+      it 'is not successful' do
+        expect(result.success).to eql(false)
+      end
+
+      it 'has a vendor name' do
+        expect(result.vendor_name).to eql('socure_kyc')
+      end
+
+      it 'does not have transaction id' do
+        expect(result.transaction_id).to be_nil
+      end
+
+      it 'includes exception details' do
+        expect(result.exception).to be_an_instance_of(Proofing::TimeoutError)
+      end
+    end
+  end
+
+  context 'when request returns HTTP 400' do
+    let(:response_status) { 400 }
+    let(:response_body) do
+      {
+        status: 'Error',
+        referenceId: 'a-big-unique-reference-id',
+        data: {
+          parameters: ['firstName'],
+        },
+        msg: 'Request-specific error message goes here',
+      }
+    end
+
+    describe 'the result' do
+      it 'is not successful' do
+        expect(result.success).to eql(false)
+      end
+
+      it 'has a vendor name' do
+        expect(result.vendor_name).to eql('socure_kyc')
+      end
+
+      it 'has a transaction id' do
+        expect(result.transaction_id).to eql('a-big-unique-reference-id')
+      end
+
+      it 'includes exception details' do
+        expect(result.exception).to be_an_instance_of(Proofing::Socure::IdPlus::RequestError)
+      end
+    end
+  end
+
+  context 'when request returns HTTP 401' do
+    let(:response_status) { 401 }
+    let(:response_body) do
+      {
+        status: 'Error',
+        referenceId: 'a-big-unique-reference-id',
+        msg: 'Request-specific error message goes here',
+      }
+    end
+
+    describe 'the result' do
+      it 'is not successful' do
+        expect(result.success).to eql(false)
+      end
+
+      it 'has a vendor name' do
+        expect(result.vendor_name).to eql('socure_kyc')
+      end
+
+      it 'has a transaction id' do
+        expect(result.transaction_id).to eql('a-big-unique-reference-id')
+      end
+
+      it 'includes exception details' do
+        expect(result.exception).to be_an_instance_of(Proofing::Socure::IdPlus::RequestError)
+      end
+    end
+  end
+
+  context 'when request returns a weird non-JSON HTTP 500' do
+    let(:response_status) { 500 }
+    let(:response_body) do
+      'It works!'
+    end
+
+    describe 'the result' do
+      it 'is not successful' do
+        expect(result.success).to eql(false)
+      end
+
+      it 'has a vendor name' do
+        expect(result.vendor_name).to eql('socure_kyc')
+      end
+
+      it 'does not have a transaction id' do
+        expect(result.transaction_id).to be_nil
+      end
+
+      it 'includes exception details' do
+        expect(result.exception).to be_an_instance_of(Proofing::Socure::IdPlus::RequestError)
+      end
+    end
+  end
+end
diff --git a/spec/services/proofing/socure/id_plus/request_spec.rb b/spec/services/proofing/socure/id_plus/request_spec.rb
new file mode 100644
index 00000000000..4c0fd4ec867
--- /dev/null
+++ b/spec/services/proofing/socure/id_plus/request_spec.rb
@@ -0,0 +1,242 @@
+require 'rails_helper'
+
+RSpec.describe Proofing::Socure::IdPlus::Request do
+  let(:config) do
+    Proofing::Socure::IdPlus::Config.new(
+      api_key:,
+      base_url:,
+      timeout:,
+    )
+  end
+  let(:api_key) { 'super-$ecret' }
+  let(:base_url) { 'https://example.org/' }
+  let(:timeout) { 5 }
+  let(:user) { build(:user) }
+  let(:input) do
+    Proofing::Socure::IdPlus::Input.new(
+      email: user.email,
+      **Idp::Constants::MOCK_IDV_APPLICANT_WITH_PHONE.slice(
+        *Proofing::Socure::IdPlus::Input.members,
+      ),
+    )
+  end
+
+  subject(:request) do
+    described_class.new(config:, input:)
+  end
+
+  describe '#body' do
+    it 'contains all expected values' do
+      freeze_time do
+        expect(JSON.parse(request.body, symbolize_names: true)).to eql(
+          {
+            modules: [
+              'kyc',
+            ],
+            firstName: 'FAKEY',
+            surName: 'MCFAKERSON',
+            dob: '1938-10-06',
+            physicalAddress: '1 FAKE RD',
+            physicalAddress2: nil,
+            city: 'GREAT FALLS',
+            state: 'MT',
+            zip: '59010-1234',
+            country: 'US',
+            nationalId: Idp::Constants::MOCK_IDV_APPLICANT_WITH_PHONE[:ssn],
+            countryOfOrigin: 'US',
+
+            email: user.email,
+            mobileNumber: Idp::Constants::MOCK_IDV_APPLICANT_WITH_PHONE[:phone],
+
+            userConsent: true,
+
+            # XXX: This should be set to the time the user submitted agreement,
+            #      which we are not currently tracking. The "5.minutes.ago" is
+            #      because Socure will reject times "in the future", so we avoid
+            #      our clocks being out of sync with theirs.
+            consentTimestamp: 5.minutes.ago.iso8601,
+          },
+        )
+      end
+    end
+  end
+
+  describe '#headers' do
+    it 'includes appropriate Content-Type header' do
+      expect(request.headers).to include('Content-Type' => 'application/json')
+    end
+
+    it 'includes appropriate Authorization header' do
+      expect(request.headers).to include('Authorization' => "SocureApiKey #{api_key}")
+    end
+  end
+
+  describe '#send_request' do
+    before do
+      stub_request(:post, 'https://example.org/api/3.0/EmailAuthScore').
+        to_return(
+          headers: {
+            'Content-Type' => 'application/json',
+          },
+          body: JSON.generate(
+            {
+              referenceId: 'a-big-unique-reference-id',
+              kyc: {
+                reasonCodes: [
+                  'I100',
+                  'R200',
+                ],
+                fieldValidations: {
+                  firstName: 0.99,
+                  surName: 0.99,
+                  streetAddress: 0.99,
+                  city: 0.99,
+                  state: 0.99,
+                  zip: 0.99,
+                  mobileNumber: 0.99,
+                  dob: 0.99,
+                  ssn: 0.99,
+                },
+              },
+            },
+          ),
+        )
+    end
+
+    it 'includes API key' do
+      request.send_request
+
+      expect(WebMock).to have_requested(
+        :post, 'https://example.org/api/3.0/EmailAuthScore'
+      ).with(headers: { 'Authorization' => "SocureApiKey #{api_key}" })
+    end
+
+    it 'includes JSON serialized body' do
+      request.send_request
+
+      expect(WebMock).to have_requested(
+        :post, 'https://example.org/api/3.0/EmailAuthScore'
+      ).with(body: request.body)
+    end
+
+    context 'when service returns HTTP 200 response' do
+      it 'method returns a Proofing::Socure::IdPlus::Response' do
+        res = request.send_request
+        expect(res).to be_a(Proofing::Socure::IdPlus::Response)
+      end
+
+      it 'response has kyc data' do
+        res = request.send_request
+        expect(res.kyc_field_validations).to be
+        expect(res.kyc_reason_codes).to be
+      end
+    end
+
+    context 'when service returns an HTTP 400 response' do
+      before do
+        stub_request(:post, 'https://example.org/api/3.0/EmailAuthScore').
+          to_return(
+            status: 400,
+            headers: {
+              'Content-Type' => 'application/json',
+            },
+            body: JSON.generate(
+              {
+                status: 'Error',
+                referenceId: 'a-big-unique-reference-id',
+                data: {
+                  parameters: ['firstName'],
+                },
+                msg: 'Request-specific error message goes here',
+              },
+            ),
+          )
+      end
+
+      it 'raises RequestError' do
+        expect do
+          request.send_request
+        end.to raise_error(
+          Proofing::Socure::IdPlus::RequestError,
+          'Request-specific error message goes here (400)',
+        )
+      end
+
+      it 'includes reference_id on RequestError' do
+        expect do
+          request.send_request
+        end.to raise_error(
+          Proofing::Socure::IdPlus::RequestError,
+        ) do |err|
+          expect(err.reference_id).to eql('a-big-unique-reference-id')
+        end
+      end
+    end
+
+    context 'when service returns an HTTP 401 reponse' do
+      before do
+        stub_request(:post, 'https://example.org/api/3.0/EmailAuthScore').
+          to_return(
+            status: 401,
+            headers: {
+              'Content-Type' => 'application/json',
+            },
+            body: JSON.generate(
+              {
+                status: 'Error',
+                referenceId: 'a-big-unique-reference-id',
+                msg: 'Request-specific error message goes here',
+              },
+            ),
+          )
+      end
+
+      it 'raises RequestError' do
+        expect do
+          request.send_request
+        end.to raise_error(
+          Proofing::Socure::IdPlus::RequestError,
+          'Request-specific error message goes here (401)',
+        )
+      end
+    end
+
+    context 'when service returns weird HTTP 500 response' do
+      before do
+        stub_request(:post, 'https://example.org/api/3.0/EmailAuthScore').
+          to_return(
+            status: 500,
+            body: 'It works!',
+          )
+      end
+
+      it 'raises RequestError' do
+        expect do
+          request.send_request
+        end.to raise_error(Proofing::Socure::IdPlus::RequestError)
+      end
+    end
+
+    context 'when request times out' do
+      before do
+        stub_request(:post, 'https://example.org/api/3.0/EmailAuthScore').
+          to_timeout
+      end
+
+      it 'raises a ProofingTimeoutError' do
+        expect { request.send_request }.to raise_error Proofing::TimeoutError
+      end
+    end
+
+    context 'when connection is reset' do
+      before do
+        stub_request(:post, 'https://example.org/api/3.0/EmailAuthScore').
+          to_raise(Errno::ECONNRESET)
+      end
+
+      it 'raises a RequestError' do
+        expect { request.send_request }.to raise_error Proofing::Socure::IdPlus::RequestError
+      end
+    end
+  end
+end
diff --git a/spec/services/proofing/socure/id_plus/response_spec.rb b/spec/services/proofing/socure/id_plus/response_spec.rb
new file mode 100644
index 00000000000..c41fd1d3037
--- /dev/null
+++ b/spec/services/proofing/socure/id_plus/response_spec.rb
@@ -0,0 +1,95 @@
+require 'rails_helper'
+
+RSpec.describe Proofing::Socure::IdPlus::Response do
+  let(:response_body) do
+    {
+      'referenceId' => 'a1234b56-e789-0123-4fga-56b7c890d123',
+      'kyc' => {
+        'reasonCodes' => [
+          'I919',
+          'I914',
+          'I905',
+        ],
+        'fieldValidations' => {
+          'firstName' => 0.99,
+          'surName' => 0.99,
+          'streetAddress' => 0.99,
+          'city' => 0.01,
+          'state' => 0.01,
+          'zip' => 0.01,
+          'mobileNumber' => 0.99,
+          'dob' => 0.99,
+          'ssn' => 0.99,
+        },
+      },
+    }
+  end
+
+  let(:http_response) do
+    instance_double(Faraday::Response).tap do |r|
+      allow(r).to receive(:body).and_return(response_body)
+    end
+  end
+
+  subject do
+    described_class.new(http_response)
+  end
+
+  describe '#reference_id' do
+    it 'returns referenceId' do
+      expect(subject.reference_id).to eql('a1234b56-e789-0123-4fga-56b7c890d123')
+    end
+  end
+
+  describe '#kyc_reason_codes' do
+    it 'returns the correct reason codes' do
+      expect(subject.kyc_reason_codes).to contain_exactly(
+        'I919',
+        'I914',
+        'I905',
+      )
+    end
+
+    context 'no kyc section on response' do
+      let(:response_body) do
+        {}
+      end
+
+      it 'raises an error' do
+        expect do
+          subject.kyc_reason_codes
+        end.to raise_error(RuntimeError)
+      end
+    end
+  end
+
+  describe '#kyc_field_validations' do
+    it 'returns an object with actual booleans' do
+      expect(subject.kyc_field_validations).to eql(
+        {
+          firstName: true,
+          surName: true,
+          streetAddress: true,
+          city: false,
+          state: false,
+          zip: false,
+          mobileNumber: true,
+          dob: true,
+          ssn: true,
+        },
+      )
+    end
+
+    context 'no kyc section on response' do
+      let(:response_body) do
+        {}
+      end
+
+      it 'raises an error' do
+        expect do
+          subject.kyc_field_validations
+        end.to raise_error(RuntimeError)
+      end
+    end
+  end
+end