email

This post was authored by Nick Biasini with contributions from Kevin Brooks Overview The use of macro enabled word documents has exploded over the last year, a primary example payload being Dridex. Last week, Talos researchers identified another short lived spam campaign that was delivering a new va…

If you read the recently released Cisco Annual Security Report, you will have learned how spammers have adopted a “Snowshoe” strategy, using a large number of IP addresses with a low message volume per IP address, to send spam, preventing some spam systems from sinking the spam. This yielded a 250 p…

I’d mentioned earlier (see Improving Email at Cisco Part 1 – The IT Technology Side) that email has its ugly side: Too many Most of them are a waste of time Emails will, occasionally, carry virus payloads (or link you to sites that have worse); and yet I can’t live without it…

In the last chapter of our five part Big Data in Security series, expert Data Scientists Brennan Evans and Mahdi Namazifar join me to discuss their work on a cloud anti-phishing solution. Phishing is a well-known historical threat. Essentially, it’s social engineering via email and it continues to b…

Following part three of our Big Data in Security series on graph analytics, I’m joined by expert data scientists Dazhuo Li and Jisheng Wang to talk about their work in developing an intelligent anti-spam solution using modern machine learning approaches on Hadoop. What is ARS and what problem is it…

The Internet remains an environment where it is important to keep your wits. The recent indictment of nine individuals on stock fraud charges reminds us that the pump and dump scam continues to be perpetrated [1][2]. Stock spam emails were particularly prevalent during the mid-2000’s, with these mes…

Within many organisations offering online services to the public, there must be a great temptation to expire redundant user accounts that occupy desirable user IDs but which are never used by their users. Presumably the user IDs have been registered by someone, used on a couple of occasions, and the…

In my previous blog post, I talked about how adding a social support layer enabled the IT Mobility team within Cisco to realize cost avoidance of $650k, which was leveraged for new, innovative projects. Benefits were also seen in Cisco IT’s Email and Calendaring WebEx Social community. Since i…

I have lost count of the number of trade shows I’ve worked over my career. But working trade shows for Cisco over the past 14 months has been a uniquely positive experience. Microsoft TechEd North America 2013 makes my 5th show evangelizing Cisco UCS and our solutions. I have been able to have long…