Amazon claims that its online cloud, which provides the infrastructure many websites rely on, has repelled the largest DDoS attack in history.
Distributed Denial of Service (DDoS) attacks are designed to take a website offline by flooding it with huge amounts of requests until it crashes.
Amazon Web Services (AWS) said the February attack fired 2.3Tbps.
This is just under half of all traffic BT sees across its UK network during a normal business day.
The previous record, set in 2018, was 1.7 TB.
“This is great news for people in the industry,” said Lisa Forte of Red Goat Cyber Security, warning that it was “huge” compared to the previous all-time high.
“It’s like comparing a moped to a supercar,” he said.
“They are totally different animals.
“These are outliers.
“But as always with cyber threats, every day we participate in an arms race against attackers.
“This will surely be an alarming revelation for many and could be a warning that we shouldn’t ignore.”
In a formal report on its DDoS protection service, AWS Shield, the company said the attack spike was 44% larger than anything the service had previously seen and led to a “high threat” status. “three days.
But it did not identify which website or online service was targeted by the attack.
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DDoS attacks are relatively simple in nature and rely on their sheer scale to be effective.
They often use a large number of machines compromised by malware to launch attacks, which can be purchased online by cyber criminals relatively cheaply.
They have been used by groups like the hacktivist collective Anonymous to target the websites of companies or local governments with which they disagree.
However, protection services such as AWS Shield, Cloudflare and Akamai, among others, have been used by many of the major online services in an attempt to limit their effectiveness.