The UK GDPR

Use only processors providing sufficient guarantees to implement appropriate technical and organisational measures such that the processing meets the Regulation's requirements and protects the rights of the data subject. A processor must not engage another processor without the controller's prior specific or general written authorisation, and under a general authorisation must inform the controller of intended additions or replacements so the controller can object. The processing must be governed by a written contract or other legal act binding the processor to the controller, setting out the subject matter and duration, the nature and purpose, the type of personal data, the categories of data subjects and the controller's obligations and rights, and stipulating that the processor processes only on documented controller instructions including as to transfers, ensures persons authorised to process are under a duty of confidentiality, takes all Article 32 measures, respects the sub-processor conditions, assists the controller in responding to data subject rights requests, assists with Articles 32 to 36, deletes or returns all personal data at the controller's choice at the end of the service and deletes existing copies unless law requires retention, and makes available all information needed to demonstrate compliance and allows for and contributes to audits and inspections. The processor must immediately inform the controller if it considers an instruction infringes data protection law. The same obligations must be imposed on any sub-processor, and the initial processor remains fully liable for the sub-processor's performance. A processor that determines purposes and means is a controller for that processing.

On becoming aware of a personal data breach, notify it to the competent supervisory authority without undue delay and, where feasible, not later than 72 hours after becoming aware, unless the breach is unlikely to result in a risk to the rights and freedoms of natural persons; a notification made later than 72 hours must be accompanied by the reasons for the delay. A processor must notify its controller without undue delay after becoming aware of a breach. The notification must at least describe the nature of the breach including, where possible, the categories and approximate number of data subjects and of personal data records concerned, give the name and contact details of the data protection officer or other contact point, describe the likely consequences, and describe the measures taken or proposed including any measures to mitigate adverse effects. Information may be provided in phases where it cannot all be given at once. Document every personal data breach, including the facts, its effects and the remedial action taken, so the supervisory authority can verify compliance with this Article.

Transfer personal data undergoing processing, or intended for processing after transfer, to a third country or an international organisation only where the conditions laid down in Chapter V are complied with by the controller and the processor, including for onward transfers from that third country or international organisation to another third country or international organisation. Apply all the provisions of Chapter V so that the level of protection of natural persons guaranteed by the Regulation is not undermined.

In the absence of an adequacy decision, transfer personal data to a third country or an international organisation only where the controller or processor has provided appropriate safeguards and on condition that enforceable data subject rights and effective legal remedies are available. Safeguards requiring no specific authorisation are a legally binding and enforceable instrument between public authorities or bodies, binding corporate rules under Article 47, standard data protection clauses adopted by the Commission, standard clauses adopted by a supervisory authority and approved by the Commission, an approved code of conduct together with binding and enforceable commitments from the recipient to apply the safeguards including as to data subject rights, or an approved certification mechanism with the same commitments. Subject to authorisation from the competent supervisory authority, safeguards may also be provided by contractual clauses between the parties or by provisions inserted into administrative arrangements between public authorities that include enforceable and effective data subject rights.

Per UK GDPR Articles 24-43: controller + processor + DPO + RoPA + DPIA + Privacy by Design + Records + breach notification.

Per UK GDPR Articles 44-50: international transfers + adequacy + SCCs + BCRs.