TechCrunch reports that AT&T email accounts have been compromised by an unknown cybercrime operation, which has leveraged the infiltrated accounts to steal cryptocurrency assets.
Attackers were noted by a tipster to have secured access to a portion of the telecommunications firm's internal network that enables the creation of mail keys for their users, allowing them to leverage email apps to access the account of their targets and later replace passwords for cryptocurrency wallets and other services.
Approximately $15 million to $20 million worth of cryptocurrency have been stolen by the hackers, according to the tipster, who also offered a list of people allegedly impacted by the attacks.
Meanwhile, a screenshot of the hackers' Telegram group chat included claims of compromising AT&T's complete employee database but the lack of a certificate for accessing the company's VPN servers.
However, AT&T refuted that its internal company systems have been compromised, with company spokesperson Jim Kimberly noting that API access had been used to facilitate the attacks.
Such a disclosure from iLearningEngines, which comes months after questions regarding the legitimacy of its revenue figures surfaced, also follows a string of business email compromise attacks resulting in the theft of millions of dollars in recent months.
While email correspondences between the Congressional Research Service and other Library staff and certain congressional offices between January and September had been compromised, such an intrusion — which was initially reported by NBC News — did not affect the House and Senate's IT networks and respective email accounts.
While SVG primarily enables the crafting of images using text, lines, and shapes in code rather than pixels, such files could also be utilized to show HTML and facilitate JavaScript execution in credential-stealing phishing forms.