GitHub Was Almost Destroyed - The Untold Story of the Biggest Attack in Cybersecurity.

In 2018, GitHub faced the largest DDoS attack in cybersecurity history, reaching 1.35 terabytes per second using memcached amplification techniques. Attackers exploited misconfigured memcached servers worldwide to amplify small requests into massive responses, overwhelming GitHub's infrastructure. The company successfully defended against the attack by partnering with Akamai Prolexis for traffic scrubbing and rerouting. This incident exposed thousands of vulnerable servers globally and prompted widespread security improvements across hosting providers.