How Ransomware Evolved

Ransomware - How Ransomware Evolved

In a webnar that details how MegaCortex, the most recent Ransomware, attacks the network, the presenter from Sophos briefly introduced how Ransomware evolved over the years, way back from 1989 when an AIDS trojan was spread by 20K floppy disks via postal office to most recent years attacks including WannaCry in 2017 and MegaCortex in 2019. Guess how many type […]

Authentic Emails with SPF, DKIM, and DMARC

Email Security - Authentic Emails with SPF, DKIM, and DMARC

SPF, DKIM, and DMARC are different methods to authenticate your email to serve one dedicated purpose, detecting forged sender address in emails used in phishing or spam. SPF, Sender Policy Framework, allows the receiver to check that an email claiming from a specific domain comes from an IP address authorized by that domain’s admin. A typical SPF record is a […]