The rule is not new
The CIMA Rule on Cybersecurity for Regulated Entities has been in force since November 2020. Inspectors expect a mature framework by now, not a first draft.
Source: CIMA

Since November 2020, CIMA has required regulated entities to run a cybersecurity framework proportionate to their size and risk, approved by the board. Most firms have policies. Fewer can show the framework working.
Your governance, controls and records measured against what the rule requires, with every gap rated and paired with a fix.
A framework and policy set the board can approve with confidence, and reporting that keeps it informed.
Threats, vulnerabilities and impacts assessed for your business, and reviewed regularly.
A plan that names who decides an incident is material and who notifies CIMA, within the 72 hour limit.
Cybersecurity expectations applied to your IT providers and cloud platforms, with due diligence on record.
Records organised and a mock inspection run, so management is ready for supervisory questions.
Your obligations under the rule confirmed.
Controls and records tested against them.
Gaps closed, highest risk first.
Records maintained and reviewed each year.
The CIMA Rule on Cybersecurity for Regulated Entities has been in force since November 2020. Inspectors expect a mature framework by now, not a first draft.
Source: CIMA
Regulated entities must notify CIMA immediately, and no later than 72 hours after discovering a material cybersecurity incident.
Source: CIMA Rule on Cybersecurity for Regulated Entities
If personal data is involved, the Data Protection Act requires notice to the Ombudsman and affected people within five days.
Source: Data Protection Act (2021 Revision), section 16
Entities regulated by CIMA. The requirements are proportionate, so a small firm's framework can be simpler than a bank's, but it must exist and be approved by the board.
One that significantly affects your operations, clients, data or reputation. Your incident plan should define the criteria in advance, so nobody debates it during an incident.
They can operate many of the controls, but the board remains accountable. Someone independent of daily operations should check the framework works.
Tell us what you're working on. We'll listen, ask the right questions and recommend a practical next step. No obligation.