10/28/2021
Visa fraud alerts: Digital skimming and ransomware
Fighting fraud is a never-ending battle, with the landscape shifting every day. So it’s important to stay up to date on the latest skirmishes – and what you can do to live to fight fraud another day!
To that end, Visa recently released reports on two particularly troublesome threats: digital skimming and ransomware. Both fraud threats have been around for years, but as Visa pointed out, “digital skimming remains among the top threats to eCommerce merchants, card-not-present data and the payments ecosystem.”1 As for ransomware, a group called BlackMatter is now wreaking the most havoc, especially for larger organizations.2
Both digital skimming and ransomware involve using malicious code (malware) to compromise sensitive payment information. With digital skimming, an attacker infects a website with malicious code that “skims” payment card information while it is being entered into a website during payment, with the merchant and cardholder unaware. Ransomware infiltrates an organization’s computer system and holds the data hostage in order to collect a ransom.
There are no easy answers for combatting these threats, but constant vigilance can help. This includes regularly scanning and testing eCommerce sites for vulnerabilities or malware, and monitoring the eCommerce environment using indicators of compromise (IOCs) that are associated with attacks. Here are IOCs recently identified by Visa Payment Fraud Disruption that can help identify, mitigate and prevent digital skimming and ransomware attacks.
Recently identified digital skimming IOCs
IOCs associated with malware used in recent BlackMatter campaign
1Visa Security Alert – August 2021: Digital Skimming Indicators of Compromise
2Visa Security Alert – August 2021: BlackMatter Ransomware Actively Targeting Multiple Regions
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