email security

May 23, 2017

THREAT RESEARCH

Modified Zyklon and plugins from India

Streams of malicious emails Talos inspects every day usually consist of active spamming campaigns for various ransomware families, phishing campaigns and the common malware family suspects such as banking Trojans and bots.. It is however often more interesting to analyze campaigns smaller in volume as they might contain more interesting malware. A few weeks ago […]

March 3, 2017

THREAT RESEARCH

Malware Round-up For The Week of Feb 27 – Mar 3

Today, Talos is publishing a glimpse into the most prevalent threats we’ve observed over the past week. Unlike our other posts, this post isn’t meant to be an in-depth analysis. Instead, this post will summarize the threats we’ve observed by highlighting key behavior characteristics, indicators of compromise, and how our customers are automatically protected from […]

October 18, 2016

SECURITY

Combating Email Spoofing with Cisco Email Security Forged Email Detection

In April we covered the description of Email Spoofing using Microsoft Outlook, but what about detecting and mitigating it on the Mail Transfer Agent (MTA)? There are multiple technologies that have attempted to address the issues surrounding spoofed emails on the MTA, but they all have shortcomings that can limit their usefulness. DKIM, or Domain […]

October 6, 2016

SECURITY

Phishing for Threat Intelligence: Using Your Spam Quarantine for the Greater Good

Cisco’s OpenDNS enables phishing awareness by helping organizations learn about commonly identifiable tactics used by scammers.

August 1, 2016

SECURITY

Attackers Evolve Tactics to Infiltrate Your Network via Email

Email continues to be the number one business communication method and is still the number one threat vector. This ubiquitous communication technology also provides an effective path for criminal actors. Today, customers are more concerned about targeted and other advanced attacks rather than spam capture rates. Well-funded, educated criminals employ a wide range of attack […]

June 21, 2016

SECURITY

Protect against today’s attacks with AsyncOS 10.0 for Cisco Email Security

New email security release adds spoofing protection, auto-remediation of malware for Office 365 customers, AMP Private Cloud, and more. There’s been a spike in ransomware and spear-phishing attacks in the last several months. Read any news outlet and you’ll find examples of health records and other valuable data being locked up, employees duped into releasing […]

April 5, 2016

SECURITY

What is Email Spoofing and How to Detect It

What is Email Spoofing? Email spoofing is the creation of email messages with a forged sender address for the purpose of fooling the recipient into providing money or sensitive information.  For example: a sender 401k_Services@yourcompany.com sends a message to your business email address stating that you have one day to log into your account to take […]

March 4, 2016

SECURITY

Walking the Tightrope of Security and Usability

Here at the RSA Conference 2016, the theme this year is Connect to Protect. It is a fitting theme for a gathering of security professionals, given the widespread adoption of...

October 13, 2015

SECURITY

The Risks of Outdated Email Encryption and the Advantages of ZixGateway with Cisco Technology

Email is how your company keeps business moving. It’s so easy to click the Send button that your employees may not realize the risk. In the past you may have found it easier to turn a blind eye, especially for an issue that does not appear to be a business priority. But a never-ending cycle […]