First-line Support in the Event of Data Leaks

Immediate measures: report threats to An Garda Síochána straight away. Do not accept unordered deliveries and do not pay invoices for orders you did not make. Report fraud to An Garda Síochána.
Prevention: check your post for unexpected deliveries, invoices or reminder letters.

Immediate measures: change your password for the affected service and any other accounts for which you use the same password right away, choosing a strong new password in each case. Move your crypto to a secure new wallet.
Prevention: check wallet activities for transactions you did not carry out yourself on a regular basis. Use a physical wallet for greater security.

Immediate measures: be particularly alert to accounts being opened or contracts being concluded without your authorisation, or to the misuse of your identity in verification processes where your date of birth is requested as a security question.
Prevention: change your security questions for online services and do not use any real data. Even if the maiden name of your mother is asked for, use a fictitious answer.

Immediate measures: change your IP address (for instance, by restarting the router) to protect your privacy.
Prevention: keep your router, operating system and apps up to date at all times. Use a VPN to conceal your IP address.

Immediate measures: report the incident to An Garda Síochána so you have official proof straight away if your identity is misused. Request a new document with your driving licence issuer if a scan or photo of your driving licence has been disclosed.
Prevention: check your post for unexpected payment reminders, contracts, penalty notices or correspondence from debt collection agencies. Never share uncensored scans or photos of your driving licence online or with unknown people.

Immediate measures: change the password of your e-mail account and any online accounts for which you use the same password right away, choosing a strong new password in each case.
Prevention: be particularly careful with unexpected e-mails. Do not click any links, and use spam filters to block harmful messages. Activate two-factor authentication for all accounts that support this security feature. Manage secure passwords with a password manager.

Immediate measures: inform the relevant organisations (banks, insurance companies, the authorities) about the data leak and look out for the unauthorised use of your identity. Block your credit card right away if the details of your PIN or card have been stolen. If your IBAN has leaked, you may have to set up a block on direct debits with your bank.
Prevention: in the subsequent period of time, regularly check your account statements, transactions and the login activities in your online banking for suspicious or unauthorised transactions and dispute any unauthorised direct debits without delay. Only store your credit card details with trusted providers.

Immediate measures: inform the relevant organisations (banks, insurance companies, the authorities) about the data leak and look out for the unauthorised use of your identity. File a report with An Garda Síochána. Request a new ID if a scan or photo of your document has been published or your identity has already been misused.
Prevention: look out for the unauthorised use of your ID, for instance, with government bodies, banks or insurance companies. Keep an eye on your credit reports (with credit institutes, for example) so you can identify any unauthorised credit or contract applications in your name immediately.

Immediate measures: inform the relevant organisations (banks, insurance companies, the authorities) about the data leak and look out for any unauthorised use of your identity. Check insurance documents for fraudulent services.

Immediate measures: inform your health insurance provider and the doctors treating you about the data leak so a block notice or an additional password for telephone enquires can be added. Check your account transactions and healthcare invoices for irregularities right away if billing information has already been disclosed.
Prevention: always be wary of e-mails, text messages or calls relating to your health or that claim to come from doctors, chemists or your health insurer. Do not click links in messages prompting you to confirm health data or pay for outstanding medical tests.

Immediate measures: inform the people in your immediate circle that your data was included in a data leak and that criminals may contact them pretending to be you.
Prevention: be especially cautious with unexpected e-mails, text messages or calls. Do not click any links, and use spam filters to block harmful messages. Take a critical approach whenever someone claiming to be the employee of a company or government body asks for your data. Never publicly share your full name to avoid its misuse.

Immediate measures: change your password for the affected service and any other accounts for which you use the same password right away, choosing a strong new password in each case.
Prevention: activate two-factor authentication for all accounts that support this security feature. Manage secure passwords with a password manager.

Immediate measures: in the event of a sudden loss of network coverage, contact your mobile network provider straight away. This can be a warning sign for SIM swapping. Contact your mobile network provider without delay and report the potential misuse of your number. Ask your mobile network provider for additional security measures for your number.
Prevention: be especially vigilant with unexpected e-mails, text messages or calls. Do not click any links, and use spam filters to block harmful messages.

Immediate measures: remove links to other accounts associated with your user name and that you are no longer using. (You can do so in your account settings, usually in the “Security” or “Linked Services” area.) Monitor logins and activities in your user accounts.
Prevention: delete inactive accounts that you are no longer using.