Hackers Poison Adform Script to Swap Crypto Wallet Addresses Across Customer Sites

Advertising technology firm Adform has identified a supply chain attack where hackers compromised a JavaScript file to alter cryptocurrency wallet addresses displayed on client websites. The malicious code, active around July 27, 2026, could replace legitimate wallet addresses with attacker-controlled ones when users copied them or interacted with forms. Adform has since removed the malicious code and notified affected customers, advising them to clear browser caches and verify all wallet addresses before sending funds.