Castra Information Security Blog

What's the difference between malware and legitimate software? Just as malware is often purported to be legitimate software, legitimate...

Blog

December 5, 2017

Adblocking

Adblocking is becoming a more and more contentious topic in recent days. Publications, understandably, do not want people to block ads ...

Blog

October 12, 2017

Egress Filtering

You are probably already aware that filtering inbound traffic at the firewall is an essential part of network security - but what you m...

Blog

September 1, 2017

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