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What is REvil ransomware? A complete cybersecurity breakdown
REvil ransomware was a highly prolific ransomware operation active between 2019 and early 2022. It ran a large-scale Ransomware-as-a-Service (RaaS) model, enabling affiliates to launch attacks against...
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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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Blue team vs. red team cybersecurity: Comprehensive guide
Organizations often invest heavily in cybersecurity controls, yet still struggle to test how these controls hold up against adversary-style activity and turn findings into sustained improvement. A com...
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How just-in-time access enhances cybersecurity
Over-privileged accounts are a valuable target for cybercriminals because standing permissions give attackers more time and opportunity to move laterally through a network without detection. A highly ...
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What is MAC flooding? How the attack works and why it’s a security risk
Many local networks use devices called switches to move data between laptops, phones, printers, and servers. Instead of sending every piece of data to every connected device, a switch forwards traffic...
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How to ensure NFC security for safe transactions
Near-field communication (NFC) security depends on a small number of technical controls. When these controls work as intended, NFC payments and taps are difficult to intercept or misuse. When they’r...
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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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What is password cracking and how can you prevent it?
Password cracking is a technique attackers use to uncover passwords by systematically guessing them or analyzing stolen, hashed password data. Weak or reused passwords make the process far easier than...
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What is an open port? A guide to network vulnerabilities
Your devices constantly exchange data across networks. This exchange happens through network ports, which act like numbered doorways that help direct traffic to the right app or service. An open port ...
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What is eavesdropping in cybersecurity, and how do you prevent it?
Eavesdropping in cybersecurity is when an unauthorized party secretly intercepts digital communications as they travel across a network. Typically, their aim is to collect sensitive information such a...