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What is SSH? An introduction to Secure Shell protocol
With remote access, we can log into servers from coffee shops, manage cloud systems from home offices, and allow tech support to access our computers from anywhere. The Secure Shell (SSH) protocol pla...
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What is cyber threat hunting, and how does it work?
A virus or malware that infects your system doesn’t always attack right away. Advanced and targeted threats can lie dormant, collecting data, searching for sensitive information, or stealing credent...
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What is AI phishing, and how can you avoid it?
Artificial intelligence (AI) has become a part of everyday life for many people. It can assist with everything from meal planning to managing schedules and emails and can enhance the cybersecurity too...
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What is a buffer overflow, and why is it dangerous?
A buffer overflow occurs when a program writes more data to a fixed-size memory buffer than it was designed to hold, causing the excess data to spill into adjacent memory. Programs need memory to stor...
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What is PKI, and why does it matter for online security?
Trust plays a central role in how modern digital systems operate. They require dependable methods to verify identities and ensure that there’s no tampering during transmission across networks. Publi...
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How to identify and respond to NetWalker ransomware attacks
NetWalker was a well-known ransomware operation, first identified in 2019, which became especially prominent during the COVID-19 pandemic. Attackers used it to encrypt victims’ files and demand rans...
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What is an NFC tag, and how does it work? A complete guide
If you’ve ever used contactless payments, entered a building by tapping your phone, or checked out a product with a quick tap, you’ve interacted with near-field communication (NFC) tags. NFC power...
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Spear phishing: Everything you need to know
Spear phishing can be an especially effective type of online scam because it’s designed to appear legitimate. Rather than relying on broad, generic messages, attackers research their targets and tai...
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What is a phishing campaign, and how do you stay protected?
Some phishing messages are easy to recognize: for example, an email from a “Nigerian prince” promising to send you millions of dollars, or a text message with spelling and grammar mistakes saying ...
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Spotting UPS scam emails: What you need to know
When you expect a package, even if you’re not sure which carrier is delivering it, an official-looking email about a delay or problem can seem routine. In many cases, you might click this kind of al...
