Adform Adtech Script Compromised to Manipulate Cryptocurrency Wallet Addresses

Hackers compromised Adform's JavaScript to alter cryptocurrency wallet addresses in real-time, enabling fund redirection. The supply chain attack exploited a shared resource, affecting multiple sites without direct breaches, though the full scope remains unclear.

Attackers modified a JavaScript file served by advertising technology company Adform, turning it into a browser-side tool that rewrites cryptocurrency wallet addresses.

Adform detected the incident on July 27, 2026, removed the malicious code, notified affected clients, and reported it to authorities.

Anyone who visited a site carrying the affected script on July 27 and copied a Bitcoin,

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