https://securityaffairs.com/166073/malware/threat-actors-abused-swap-files-e-skimming.html
Hackers abused swap files in e-skimming attacks on Magento sites
Jul 23, 2024 - Threat actors abused swap files in compromised Magento websites to hide credit card skimmer and harvest payment information.
https://www.openwall.com/lists/oss-security/2017/11/06/3
oss-security - Re: Fw: Security risk of vim swap files