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HomeTech & GadgetMicrosoft Azure Faces Largest Security Breach: Hundreds of Accounts Compromised

Microsoft Azure Faces Largest Security Breach: Hundreds of Accounts Compromised

The attack strategically targeted both mid-level and senior employees, with a higher number of compromised accounts belonging to the former.

February 16, 2024, 6:46 AM : Microsoft Azure, the tech giant’s cloud service, has fallen victim to its most significant security breach to date. The breach, disclosed by cybersecurity firm Proofpoint, has exposed critical user data as hundreds of Azure accounts were compromised. The attackers targeted high-profile executives from large corporations in a meticulously planned cyberattack.

Malicious Campaign Resurfaces

Proofpoint’s investigation reveals that the hacking technique mirrors a malicious campaign detected in November 2023. The cybercriminals employed a combination of credential theft through phishing methods and cloud account takeover (CTO). This sophisticated approach allowed them to gain unauthorized access not only to OfficeHome but also to Microsoft 365 applications.

Intricate Tactics and Proxy Services

To avoid detection, the hackers utilized proxy services, enabling them to bypass geographical restrictions and conceal their true location. The attack strategy involved embedding links within documents that redirected users to phishing websites. These links cleverly bore the innocuous anchor text “View document,” minimizing suspicion among the targeted executives.

Strategic Targeting and Compromised Accounts

The attack strategically targeted both mid-level and senior employees, with a higher number of compromised accounts belonging to the former. Proofpoint identifies sales directors, account managers, financial directors, operations vice presidents, presidents, and CEOs as the most common targets. This comprehensive approach allowed the cybercriminals to access sensitive information across various organizational levels and domains.

MFA Exploitation and Data Theft Objective

Once an account was compromised, cybercriminals deployed their own Multifactor Authentication (MFA) to extend access. This involved adding alternate mobile numbers or setting up authentication apps, preventing users from regaining control. Notably, all traces of suspicious activities were meticulously erased, leaving behind no evidence of the breach.

Suspected Origins: Russia and Nigeria

While the identity of the attackers remains elusive, there are indications pointing to Russia and Nigeria as potential origins. The use of local fixed-line Internet Service Providers (ISPs) in these regions suggests a possible connection. Currently, the primary motive behind the attacks appears to be data theft and the execution of financial fraud.

As Microsoft Azure grapples with the aftermath of this unprecedented security breach, users are urged to remain vigilant and implement additional security measures to protect their accounts and sensitive information. The tech community awaits further developments and responses from Microsoft regarding the steps taken to enhance security and prevent future breaches.

The Indian Bugle
The Indian Buglehttps://theindianbugle.com
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