Adform, an online advertising firm, has fallen victim to a supply-chain attack that compromised its ad platform. Attackers injected malicious scripts into the ads served by Adform, which altered clipboard contents for users visiting affected websites. Specifically, when users copied cryptocurrency wallet addresses, the scripts would replace them with addresses controlled by the attackers, directing funds to their own wallets. This incident not only threatens the financial security of users who interact with these compromised sites but also raises concerns about the integrity of ad platforms and the broader implications for online advertising security. Companies relying on Adform's services may need to reassess their security measures to protect against similar attacks in the future.