News of the breach began circulating Wednesday afternoon after visitors to archive.org began seeing a JavaScript alert created by the hacker, stating that the Internet Archive was breached.

Charles Guillemet, Chief Technology Officer at Ledger, emphasized the gravity of the situation, stating, "There’s a large-scale supply chain attack in progress: the NPM account of a reputable ...

See 31 million of you on [Have I Been Pwnd]," read the JavaScript alert that momentarily appeared on the site. “We’re taking a cautious, deliberate approach to rebuild and strengthen our defenses.