Bad Guys are Scanning Your Network!

Bad guys are scanning your network. They are finding all the vulnerabilities exposed to the Internet. The vulnerable systems, critical devices, and other ways to break into your network. When ransomware, malware, botnets, and other break-ins happen, people wonder, “how did the threat actors find that service?” People thought that “if we don’t publish it, Read More

The History of DDoS and DoS

Version 0.2 History repeats itself. The History History of DDoS and DoS illustrates how an attack vector from 1997 would reappear as “new” in 2007 and “never seen before” in 2017. History of DDoS and DoS is a living document is a tool to document (look for updates). Does not focus on the “biggest” or

BGP Security Workshop – Safeguarding the Internet’s Glue

BGP and DNS are the two critical protocols that glue the entire global network (the Internet). Without them, the Internet falls apart. The security, resiliency, and integrity Border Gateway Protocol (BGP) holds up the routing of packets end-to-end across the Internet. Threats to BGP systems are life-threatening, disrupting critical infrastructure people depend on for their

Executive Security Leadership – It is Not Hard!

Security Leadership is not hard. CxOs stress over the security threats to their business. A lot of that stress is generated by the press. Common sense Executive practices and leadership principles have guided organizations through extreme security-related business pressures. What guides the organization is obvious, clear the path for the team, trust the team, pull

Open SMTP (Email) Servers on Your Network

Do you know if you have open SMTP servers on your network? In May, Qualys released 21 vulnerabilities to Exim (see Qualys Security Advisory 21Nails: Multiple vulnerabilities in Exim). Exim is a popular Mail Transfer Agent (MTA) available on Unix operating systems and comes pre-installed on Linux distributions. The easy access and wide SMTP/Exim MTAs use Read More