Amazon Disrupts APT29 in a recent cyber campaign aimed at Microsoft 365 users. The Russian-linked hacking group, also known as Cozy Bear, attempted to steal login details using a deceptive watering hole attack. Amazon’s rapid response disrupted the operation before it could spread further.
Who Is APT29?
APT29 is a state-backed Russian threat group with a reputation for advanced espionage. The group has previously been linked to the SolarWinds supply chain attack and several credential theft operations targeting governments and businesses. They constantly update their tactics, blending technical expertise with social engineering.
How the Attack Worked
APT29 compromised legitimate websites by injecting obfuscated JavaScript into them. APT29 redirected roughly ten percent of visitors to attacker-controlled pages disguised as Cloudflare verification checks.
These fake sites used convincing domains like findcloudflare[.]com and tricked users into entering Microsoft 365 credentials. By abusing device code authentication, the hackers linked attacker-controlled devices to victim accounts.
Amazon’s Role in Disruption
Amazon detected the campaign using custom threat analysis. Once identified, the company suspended the AWS EC2 servers hosting the malicious sites. Amazon also worked closely with Microsoft and Cloudflare to block redirections and dismantle the attackers’ infrastructure.
Even as APT29 attempted to rebuild, Amazon and its partners tracked their efforts, keeping the attack contained and limiting its impact.
Why This Matters
The campaign shows how even trusted websites can be weaponized. It also highlights the creativity of state-sponsored hackers and the difficulty of spotting their traps. Amazon’s swift action demonstrates the importance of intelligence sharing and collaboration between major tech providers.
For organizations, this incident reinforces the need for layered security. Multifactor authentication, close monitoring of login activity, and rapid threat detection are key defenses against credential theft.
Conclusion
Amazon Disrupts APT29 in an attack that targeted Microsoft 365 users. By disabling malicious infrastructure and coordinating with security partners, Amazon stopped a stealthy espionage attempt. This case proves that quick intelligence and collective defense remain the strongest tools against advanced state-backed hackers.
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