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

Meaningful Security Conversations with your Vendors: Can vendors ever provide secure solutions?

It is critical to have meaningful security conversations with your vendors. Operators depend on their vendors to supply products and solutions that are secure. As all operators have experienced, “secure products” is almost always a vendor afterthought. This leads to an operational risk that in some cases turns deadly. In this session, we will explore

Protecting your Domain Names: Taking the First Steps

Protecting your domain names is often overlooked, ignored, and neglected. Everyone and everything on the Internet depends on the Domain Name System (DNS) being functional. The DNS has been a common vector for attacks in recent years. Attacking DNS will continue in the future. The 2019 DNSpionage Campaign and Sea Turtle attacks were wake calls

DNS is Under Attack – the Miscreant’s Offensive Playbook with a Defensive Counter

Our DNS is Under Attack is not something anyone wants to hear. DNS’s critical role known to the miscreants, DDoS Extortionist, DDoS Attackers, and other threat attackers. Taking out DNS is easier than trying to take down a website. Smart miscreants have a playbook of offensive DNS attack techniques that they can use against any

Realities of Today’s DDoS Security Risk

 Focusing on the lessons from the 2020 – 2021 DDoS Extortion Campaigns DDoS Extortion will not go away. It is a cyclical International crime that can only be stopped with the DDoS Extortionist are arrested. In 2020, organizations woke up to a new wave of DDoS Extortion activities. These attacks caught organizations with the DDoS

Conference Talks, Workshops, and Webinars

Barry frequently presents at conference talks, workshops, and webinars. Barry enjoys working with peers to share, empower, and entertain with live interactive sessions. 40 years of public speaking experience is reflected in the list of talks below. Crafted conference talks tuned to the organizer’s audience. The general theme for all the talks is to help

DDoS Extortionist’s Behaviors

Smart and prepared organizations use DDoS Extortionist’s Behaviors as a Defensive Tool. We have a long history of DDoS Extortionists. In the early 2000s, we had DDoS Extortionists who would threaten “gambling sites” with a DDoS Attack 30 minutes before a match. This crew was later tracked by law enforcement and arrested. DDoS Extortion has

Conficker Working Group – Archive of Materials

Conficker Still Survives! While public attention to Conficker has faded since the widely publicized April 1st, 2009 “attack date”, the fact is that a huge number of computer systems remain infected with Conficker. As recently as late October 2009, the number of systems infected with the A+B+C variants topped seven million. The Conficker Working Group

Expected DoS Attacks – 10 Steps to Prepare for the Pain

Version 1.0 It is time to prepare for Expected DoS Attacks. There is no perfect anti-DoS solution. But with forethought, planning, coordination, and practice any organization minimizes the impact of the DoS attacks. What follows ten essential steps that have proven to help organizations prepare for DoS attacks. The fundamental principles you will find in

Protect Your Network from an Internet Worm during COVID-19

Do you want a repeat of Wanacry? Do you want an Internet Impacting Worm in the middle of the COVID-19 Crisis? All organizations can take two steps to minimize the risk of a potential Internet worm. First, they can deploy an access-lists on the edge of their network that block TCP/UDP port 445. This can Read More