CYBER INSIGHTS: Thursday 25 July 2024 – Today’s SME Cybersecurity News & Intelligence

1). WHAT IS A DNSBL? A DNSBL or Domain Name System Blacklist is a part of a system that ‘helps’ to fight email spammers. There are a lot of such lists in existence, each of them containing a list of IP addresses known to send spam. DNS blacklists are used by email services and website admins to effectively keep spam out of their clients’ inboxes. Think of such lists as bouncers, but instead of having a list of people to let in, they contain lists of people to keep out.

2). THREAT INTEL: You Have 4 Months To Replace All Internet Facing Assets’ Digital Certificates Before The Asset Becomes NOT SECURE…From November 1, 2024 Google the world’s most-used web browser will no longer trust digital certificates issued by Entrust, one of the world’s most-used certificate authorities. How widespread are Entrust digital security certificates? Customers include JPMorganChase, Dell Technologies, EY, Mastercard and Merrill Lynch, and numerous governments worldwide.