Silicon Valley-based venture capital giant Sequoia Capital said the recently disclosed data breach was apparently the result of a business email compromise (BEC) attack attempt.
The company informed investors last week that their personal and financial information may have been accessed after an employee fell victim to an email phishing attack.
In a data breach notice sent to impacted individuals, a copy of which has been submitted to attorney general’s offices, Sequoia revealed that it learned of unauthorized access to an employee’s business email inbox on January 20, 2021.
The company believes the breach was part of a “wire diversion scam,” which is a type of BEC attack where hackers typically pose as an executive or a trusted vendor and attempt to trick an employee into wiring money to a bank account they control instead of a legitimate account. The fraudulent transaction may be related to paying a vendor, making a large purchase, or making a deposit.
Sequoia has not provided other information on the attack itself, but the company has found no evidence of other email accounts being compromised. However, the firm has determined that the hacked inbox contained files that included “certain individuals’ personal information,” and those files may have been acquired by the attacker.
It’s unclear exactly what type of information was compromised, but impacted individuals are being offered two years of free credit monitoring and identity theft protection services.
“Out of an abundance of caution, Sequoia has also conducted dark web monitoring to determine whether any of the data from the business email mailbox is being sold or traded by cyber criminals ..
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