TL;DR

What it is

Identity theft means someone is using your personal data to be you in front of organisations that don't yet know it isn't you. Common forms:

The thieves are rarely the people who originally collected the data. Personal data is sold and resold across underground marketplaces. The person opening a credit card in your name in another city may have bought your details two years after a breach you never heard about.

How you find out

Often you don't, for months. The most common discovery points:

Any one of these is enough to begin. Don't wait for a second sign.

What to do — the first 72 hours

Work through this in order. Slow down — speed matters less here than thoroughness. Identity theft recovery is a paperwork war, and you need a clean paper trail from the very first call.

  1. Start a recovery file. A folder, a notebook, a single digital document. Date, time, organisation, person you spoke with, what they said, any reference number they gave you. Every conversation. From the first call onward. This file is your evidence, your sanity, and your proof to other organisations that you are taking the right steps.
  2. File a police report. Even if the police cannot recover anything for you. The report (and its reference number) is what banks, credit bureaus, tax authorities, and platforms will ask you for over the next months. In most countries you can file online or by going to a local station. Bring your ID and a written summary of what has happened.
  3. Contact the credit bureaus in your country and place a fraud alert or credit freeze on your file. A freeze prevents new accounts being opened in your name without your direct consent. It is the single most powerful action available to you. (In Switzerland, contact ZEK and CRIF. In Germany, SCHUFA. In Austria, KSV1870. In the UK, Experian, Equifax, TransUnion. In the US, the three same plus Innovis. In France, Banque de France's FCC. In Italy, CRIF. In Spain, ASNEF. In Portugal, Banco de Portugal's CRC. In Brazil, Serasa.)
  4. Notify your bank, your credit-card issuer, and any payment apps. Even if no money has moved yet. Ask the fraud team to flag your accounts for higher-risk monitoring. If unfamiliar transactions exist, dispute them in writing — keep copies.
  5. Notify your phone carrier, and ask them to add an account PIN or port-out protection so an attacker cannot transfer your number to a different SIM.
  6. Notify your tax authority and your country's social security / health insurance administrator, especially if you suspect benefits or tax fraud.
  7. Notify any specific organisation where you know your identity has been used. Send a written letter (email is fine if they offer it) with your name, ID, the police report number, and the specific account or transaction in question. Keep a copy of every letter you send.

What to do — the next two weeks

What to do — the next six months

What NOT to do

Use AI to help you

Identity theft recovery is full of letters, summaries, and chronologies that AI can help you draft. Don't paste your full ID number into a public AI — but the shape of a dispute letter, or a sorted timeline of what happened, is exactly where an AI saves hours.

Drafting a dispute letter:

"I am a victim of identity theft. Someone opened [type of account] with [name of organisation] using my personal details, on or around [date]. I have already filed a police report — reference [number]. Please draft a formal dispute letter to [organisation] in [language], requesting that they (a) close the fraudulent account, (b) remove it from any credit reporting, (c) confirm in writing what evidence they have on file, and (d) confirm the steps they will take. Keep the tone firm and factual, not emotional."

Building a recovery timeline:

"Please help me build a clean chronological summary of my identity-theft case so far, for use when I contact additional banks and credit bureaus. Below is the sequence of events as I remember them, with dates where I have them. Organise it as a numbered timeline and flag any gaps where I should look for missing information. [paste your notes]"

A reminder: AI is excellent at drafting, summarising, and helping you keep track. It cannot — and must not — replace official documents or speak to authorities on your behalf. Use it to prepare; act yourself.

Who to call

The order: police report, credit bureaus, specific organisations where your identity has been used, tax / social-security authorities.

Find the latest contacts for your country with AI:

"I'm in [your country]. List the official bodies I need to contact for identity-theft recovery — the credit bureaus (so I can freeze my credit), the police service for filing a fraud report, the tax authority (in case of tax-identity fraud), the social-security or health-insurance administration, the financial ombudsman, and any non-profit victim-support service. For each, give the official website, public phone number, and (where applicable) the specific online portal for self-disclosure or freeze requests. Tell me the order to contact them in for the first 72 hours, and any country-specific deadlines I should know. Cite the official source page for each. Flag anything that might be outdated."

A short curated list, grouped by language (for the very latest, prefer the AI prompt above):

If your country isn't listed, search for "[your country] credit bureau identity theft" and "[your country] police identity theft report online."

When to escalate beyond chat

Related topics


Sources & references (internal — not rendered to the live page):