Security

Chris Young, SVP of Cisco’s Security Business Group, posted an official announcement this morning on Cisco’s The Platform blog heralding the close of the Sourcefire acquisition.  “I am excited to announce that Cisco has completed the acquisition of Sourcefire. With this acquisition, we take a signif…

During World War I, British artist and navy officer Norman Wilkinson proposed the use of “Dazzle Camouflage” on ships. The concept behind Dazzle Camouflage, as Wilkinson explained, was to “paint a ship with large patches of strong colour in a carefully thought out pattern and colour sche…

Your network, servers, and a horde of laptops have been hacked. You might suspect it, or you might think it’s not possible, but it’s happened already. What’s your next move? The dilemma of the “next move” is that you can only discover an attack either as it’s happ…

Hi there and welcome to today’s U.S. National Cyber Security Awareness Month tip, courtesy of those of us involved in administering and/or contributing to Cisco Security Intelligence Operations!! For all of you savvy technologists and those well versed in the security realm many of these tips…

After delivering several presentations at Cisco Live and Cisco Connect this year, I received a few questions regarding DNS Response Policy Zones (RPZ) and how can they be used to block DNS resolution to known malicious hosts and sites. I decided to write this short post to explain what it is and pro…

In any given week, one doesn’t need to look very far to be reminded of the events and issues that can surface anytime, anywhere, and to anyone. Given their modes of occurrence, range of diverse levels, technical, non-technical, and globally, wouldn’t it be convenient to have a brief syno…

For the last couple of years, Cisco Security Intelligence Operations has released a series of blog posts for National Cybersecurity Awareness Month. The theme for this month from the National Cyber Security Alliance is “Our Shared Responsibility.” The Department of Homeland Security is r…

Who are you? Removing the obvious existential questions for a minute, your identity is often represented as a bundle of personally identifiable information (PII). In the United States PII begins at birth with a name, date of birth, and social security number (SSN). This morning’s KrebsOnSecurity pos…

Today, we released the final Cisco IOS Software Security Advisory Bundled Publication of 2013. We committed to these predictable disclosures back in 2008 because your feedback was clear—they allow you to plan ahead and ensure resources are available to analyze, test, and remediate vulnerabilities in…