The Act
Millions of people used the same email-and-password combo across dozens of sites. When breach dumps from old forums and apps leaked those combos, attackers loaded them into automated tools and tried them against major brands — including a fast-food chain's loyalty app.
The Price
Tens of thousands of loyalty accounts were compromised in a single wave: stored payment methods exposed, gift card balances drained, personal details harvested. The company had to force logouts, reset passwords, and restore balances. The victims' only mistake was reusing one password from a forgotten forum account.
The Lesson
Every breach of any site you've ever joined is a breach of you — everywhere that password works. Use a password manager with unique passwords, and turn on two-factor authentication for anything holding money. Your 2019 forum password should not be guarding your wallet.
FAFO Index
8/10 — one lazy habit, every account at risk.
Bottom Line
Reuse a password and you're only as secure as the weakest site you've ever joined.