Information Commissioner's Office (ICO)
A guide to data security
The ICO says UK GDPR does not define the security measures an organisation must use, but requires a level of security appropriate to the risks of its processing.
Brokers ask for identity documents, addresses and payment details, so how they protect that data matters. This page summarises the UK data protection guidance on security that the ICO publishes for organisations. It does not assess any broker and does not say what any firm actually does.
What the ICO Guidance Says
The ICO's guide is written for organisations that hold personal data. It states: "The UK GDPR does not define the security measures that you should have in place." Instead, "It requires you to have a level of security that is 'appropriate' to the risks presented by your processing." In plain terms, there is no single list; the standard depends on the risk.
Risk Assessment Comes First
The ICO says: "So, before deciding what measures are appropriate, you need to assess your information risk." This is why two firms can describe their security differently and both claim to follow the rules. The guidance asks for judgement based on a documented assessment, not a fixed checklist.
Examples of Measures
The ICO gives examples rather than requirements. It states: "Where appropriate, you should look to use measures such as pseudonymisation and encryption." It also advises: "It may therefore be sensible to assume that your systems are vulnerable and take steps to protect them."
What This Means When You Share Documents
This guidance does not mention binary options, and it applies to organisations covered by UK data protection law. A broker based elsewhere may fall under different rules. Before sending identity documents, read the firm's privacy policy and check who it is; see how to check whether a broker is regulated and binary options KYC requirements. Be careful with links and attachments requested by unknown senders; see binary options phishing scam warnings. In the UK, retail binary options sales are prohibited; see our guide to binary options in the United Kingdom.
Frequently Asked Questions
Does UK data protection law list the security measures a firm must use?
The ICO states: "The UK GDPR does not define the security measures that you should have in place."
What does the ICO say the security level should depend on?
It says the law requires a level of security that is appropriate to the risks of the processing, and that organisations should assess their information risk first.
Does the ICO guide mention binary options brokers?
No. It is general guidance for organisations, so it cannot tell you whether any particular broker meets it.
Does this page address whether an individual could face liability?
This page summarises what the regulators' published guidance says. It does not address whether an individual could face liability. Seek independent legal advice.
Sources and Official References
- ICO: A guide to data security (page dated 9 September 2025)
This page summarises what the regulators' published guidance says. It does not address whether an individual could face liability. Seek independent legal advice.
This page summarises what the regulators' published guidance says. It does not address whether an individual could face liability. Seek independent legal advice.