Real-life Public Key Encryption (And Why It Matters)

One major topic in Learning Tree Course 468 System and Network Security Introduction is that of encryption. It is a core technology in cyber security because it is used to secure confidential data, as well as protect passwords and the integrity of documents. There are two basic families of encryption used to ensure the confidentiality […]
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Another Breach of Data Stored In The Cloud. Please stop.

I have a love-hate relationship with ”the cloud”. I love how easy it is to create services, easily access software and data, and I love the easy sharing of data. But I seriously hate how easy it is to unintentionally expose data that should remain confidential. In April of this year, the Telegraph reported on […]
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Fraudsters Use Padlocks, Too: More on Certificate Use and Abuse

A couple of months I wrote here about HTTPS and website security from a user standpoint. I need to add to that because bad guys can also use the digital certificates that make browsers show green padlocks or avoid notices about unencrypted sites. The issue here is that the certificate that lets a site use […]
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GDPR: What You Need to Know and Do

GDPR or the General Data Protection Regulation takes effect next May. It’s an EU regulation. However, everyone must comply with it or else suffer heavy financial penalties and risk criminal prosecution. What Is GDPR? Simply put, the GDPR requires strong protection of personal privacy of people in the EU. Violations can lead to crippling fines, […]
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Cyber Security Requires Cautious Logic

If we don’t carefully distinguish between necessary and sufficient when we are analyzing information assurance systems, we may become dangerously confident in a system that is actually quite weak. This Isn’t A New Problem Cryptography enthusiast Edgar Allan Poe wrote, in “A Few Words On Secret Writing” in Graham’s Magazine in July 1841: “Few persons […]
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