PRIVACY & DATA BREACH DETECTIVE

Privacy & Data Breach Detective

Where did my data go, and who turned it into money?

From collection to breach, takeover, resale, financial loss and compensation. Not just "how many leaked", but how far one breach reaches.

How to read this

Every fact is graded. Attacker nationality or base, use of proceeds and organisational structure appear only with law-enforcement or court records; a login country is never treated as nationality. Attack methods, tools and illegal markets are not covered.

IDENTITY DEPENDENCY CHAIN

Your email is a master recovery key

Typical pattern: external email compromise → streaming takeover. The streaming service was not breached; the recovery channel it trusts was.

  1. Email account taken (phishing, reused password, malware…)
  2. Attacker uses "forgot password" on the streaming service — the link goes to that email
  3. Account email, password and profiles changed
  4. The real owner is locked out
  5. The saved payment method can keep being charged
  6. Recovery needs the service’s support team

An explanatory model; it does not blame any email provider or country. For an official banking case see the FBI alert below.

Self-check: what falls with your email

For each service you use, tick how a forgotten password is recovered (see each account’s recovery settings). Calculated on this screen only; nothing is stored or sent.

ServiceEmail linkSMS codeAuthenticator appPasskeyID check / support
Streaming (e.g. Netflix)
Online shops
Social media
Games
Cloud / photos
Payment apps
Banking / brokerage
Work accounts
Accounts reachable if your email is taken
Streaming (e.g. Netflix) · Online shops · Social media
If your phone number (SMS) is taken
Online shops

Single point of failure: one email recovers 3 accounts. Give it a unique password and an authenticator app or passkey.

CASES

Case files

Coupang · Insider

Coupang personal data breach (2025)

37,560,840 people (33,222,472 members + at least 4,338,368 non-members) · Name, Email, Phone, Address · fines ₩624.7bn

SK Telecom · Malware

SK Telecom SIM data breach (2025)

23,244,649 people (LTE/5G incl. MVNO, de-duplicated) · Phone, SIM authentication key, Device / subscriber ID, Other · fines ₩134.8bn · detected after ~1,357 days

CRIMINAL SUPPLY CHAIN

It is not one hacker doing everything

Europol describes a crime-as-a-service market where stolen data, access and malware are traded. Stealers, access and data brokers, buyers, takeover and fraud operators, mules, launderers and cash-out may be different people — and criminals without skills can rent the tools. International agency 2025-06

Victim data stolen → Brokered and resold → Buyer takes over accounts → Fraud or unauthorised payment → Mule account → Laundering → Cash-out

Data stealer
Takes data from victims’ devices or accounts — confirmed in: US DOJ/FBI, Europol, Microsoft
Malware operator
Runs or rents out the malware — confirmed in: INTERPOL and police in 26 countries, US DOJ/FBI, Europol, Microsoft
Access broker
Sells access to already-compromised accounts or companies
Data broker
Packages and resells stolen data
Account takeover operator
Uses the data to seize real accounts — confirmed in: FBI Internet Crime Complaint Center (IC3)
Fraud operator
Turns controlled accounts into money
Equipment operator
Runs the criminal equipment on the ground — confirmed in: KT
Mule recruiter
Recruits money mules and their accounts
Money mule
Receives and moves criminal funds — can be prosecuted even if unaware
Launderer
Hides where the money came from
Cash-out
Converts proceeds into cash, gift cards, etc. — confirmed in: KT
Organizer
Plans and directs the scheme
Insider
An employee or ex-employee with access — confirmed in: Coupang

WHO BUYS STOLEN DATA

What stolen data is used for

Identity data only
Spam, impersonation calls, targeted phishing (e.g. luring you into a reset)
Email + password, cookie or code
Account takeover, including other services sharing the password
Card or account data
Payment fraud, unauthorised transfers
Full identity package
Identity fraud — loans, phone lines, new accounts
Health or biometric data
Extortion and discrimination risk; cannot be changed

Buyers include takeover, financial, identity, phishing and extortion criminals, and other brokers; the same data can be resold and bundled many times. Prices and venues are not covered. International agency 2025-06

CRIME REVENUE FLOW

How the money leaves

Victim account → criminal-controlled (mule) accounts → transfers, crypto → laundering → cash-out. The FBI says funds move fast to other criminal accounts, many tied to crypto wallets, making recovery hard. Law enforcement 2025-11

Money mules — INTERPOL: people recruited — via fake jobs, romance, investment or a "favour" — to receive and move criminal funds. They can be prosecuted even if unaware. International agency 2022

Use of proceeds is shown only when seizures or rulings confirm it — no generalisations. Laundering (hiding the source) is kept apart from final spending.

GEOGRAPHY

Login country ≠ attacker nationality

VPNs, proxies and hijacked devices make login countries unrelated to where attackers are. Location is therefore recorded in six separate fields: Observed login country · Infrastructure location · Suspect nationality · Suspect operating base · Arrest country · Victim country.

No country is labelled a source of crime. Nationality appears only for individuals named by investigators.

WHERE DID MY DATA GO

Lawful data flows are not the same as crime

Third-party provision
Handing data to another company for its own purposes — needs consent or a legal basis
Processing on behalf
Delivery, call centres, cloud handling data for the company — disclosed in the privacy policy
Advertising use
Only within separately consented scope
Overseas transfer
Transfer to servers or processors abroad — countries and items must be disclosed
Illegal sale / unauthorised transfer · unlawful
Passed on without a basis or stolen — a crime

Each company’s privacy policy discloses what it collects, its processors, third-party provision and overseas transfers. A policy decoder will follow.

REGULATORY OUTCOME

Fines and enforcement

CaseAffectedFinesOther actions
KT rogue femtocell micropayment fraud (2025)16,647₩54bnCorrective order · Referral · Criminal case
Coupang personal data breach (2025)37,560,840₩624.7bnReferral
SK Telecom SIM data breach (2025)23,244,649₩134.8bnCorrective order

Fine size depends on revenue, duration and mitigation; it is not a direct measure of security. There is no single "security score".

USER PROTECTION

Protect yourself and report

A different password per service + a password manager
Stops one leak from spreading to other accounts.
Make your email the strongest account
Most services send reset links to email — it is the master recovery key.
MFA — preferably passkeys or an authenticator app
SMS codes can be intercepted or talked out of you; never give a code to a caller.
Turn on login and payment alerts
You see email changes, new-device logins and micropayments immediately.
Block or lower carrier micropayments
As in the KT case, phone billing can become a cash-out route.
Identity-theft blocking and account look-up
Check nothing was opened in your name.

Where to report

Privacy infringement centre (KISA, 118)
Report and advice on privacy violations
KISA Boho-nara
Hacking and malware reports, security notices
Police cybercrime reporting (ECRM)
Report account takeover and fraud
Personal Information Protection Commission
Decisions and dispute mediation
Financial Supervisory Service (1332)
Financial fraud advice and complaints
Exposed personal data protection system (FSS)
Register exposure so new financial transactions get extra checks
M-Safer (phone identity-theft blocking)
See and block phone lines opened in your name
Account Info (all accounts in your name)
List every account in your name

If an account was taken, contact the service and your card issuer first to stop charges; report money loss to the police.

SOURCES

NOTE Case sources are on each case page.