The FBI issued an alert on Thursday to inform the higher education sector about the exposure of credentials that can allow threat actors to access user accounts or an organization’s network.
According to the FBI, cybercriminals have been selling usernames and passwords on various public and dark web forums.
The agency has provided three examples. One example, from January 2022, involves the sale of network and VPN access credentials belonging to US-based universities and colleges on Russian cybercrime forums. In some cases, the sellers were offering the information for thousands of dollars.
In another example, observed in May 2021, cybercriminals offered more than 36,000 username and password combinations for .edu email accounts. The information was being advertised on an instant messaging platform.
Roughly 2,000 .edu account credentials associated with a US university were offered in late 2020 on a dark web site, the FBI said.
The agency noted that these credentials are often harvested through spear-phishing, ransomware attacks, or other types of intrusions.
“The exposure of usernames and passwords can lead to brute force credential stuffing computer network attacks, whereby attackers attempt logins across various internet sites or exploit them for subsequent cyber attacks as criminal actors take advantage of users recycling the same credentials across multiple accounts, internet sites, and services,” the FBI said in its alert.
“If attackers are successful in compromising a victim account, they may attempt to drain the account of stored value, leverage or re-sell credit card numbers and other personally identifiable information, submit fraudulent transactions, exploit for other criminal activity against the account holder, or use for subsequent attacks against affiliated organizations,” the agency added.
The alert includes recommendations and mitigations, but academic institutions can also turn to the FBI for help in identifying vulnerabilities and handling incidents.
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