May 4, 2000
ILOVEYOU worm infects millions of PCs
The ILOVEYOU wormSelf-replicating malware that spreads across networks without needing a host file. spread globally on May 4, 2000 — a Visual Basic Script attachment named LOVE-LETTER-FOR-YOU that overwrote files and mailed itself via Outlook.
What it was for
ILOVEYOU caused an estimated $10 billion in damage — parliaments and corporations shut down email systems. It followed Melissa's playbook with nastier payloads and proved users would open romantic subject lines without hesitation. MicrosoftThe software giant behind Windows, Office, Azure, and Xbox — founded by Bill Gates and Paul Allen. later hardened default script execution, but social engineering remained undefeated.
Why it's here
ILOVEYOU was the most destructive email wormSelf-replicating malware that spreads across networks without needing a host file. of the early internet era.
Why it mattered
It made email attachment policies and user training non-optional for enterprises.
What it solved
Nothing initially — it exploited trust and default Windows scripting with devastating speed.
Media
ImageILOVEYOUMario23, Public domain, via Wikimedia Commons
Related
- Melissa macro virus spreads via emailMarch 26, 1999
- Microsoft Windows 95 releasedAugust 24, 1995
- Morris worm spreads on the internetNovember 2, 1988