https://peregrinotech.com/tips/ Hands-on cybersecurity tips: Windows, networking, scams, account security and forensics. en-us https://peregrinotech.com/tips/powershell-for-defenders-15-commands https://peregrinotech.com/tips/powershell-for-defenders-15-commands Sun, 01 Nov 2026 00:00:00 GMT Attackers love PowerShell because it is already on every Windows machine. Here are the 15 commands defenders use to see what they see: accounts, connections, persistence and logs, plus a 2-minute audit script. Windows Digital Forensics https://peregrinotech.com/tips/windows-event-ids-that-reveal-an-intruder https://peregrinotech.com/tips/windows-event-ids-that-reveal-an-intruder Fri, 30 Oct 2026 00:00:00 GMT Windows writes down almost everything an attacker does. Most people never read it. These are the ten Security-log event IDs that matter, what each one means, and the PowerShell to pull them in seconds. Digital Forensics Windows https://peregrinotech.com/tips/sim-swap-attacks-how-to-protect-your-phone-number https://peregrinotech.com/tips/sim-swap-attacks-how-to-protect-your-phone-number Wed, 28 Oct 2026 00:00:00 GMT A SIM swap moves your phone number to a criminal's phone. Every text-message code then goes to them: bank, email, crypto. Here is how it works, the warning signs, and the five settings that shut it down. Scams & Fraud Account Security https://peregrinotech.com/tips/check-if-your-password-has-leaked https://peregrinotech.com/tips/check-if-your-password-has-leaked Mon, 26 Oct 2026 00:00:00 GMT Billions of passwords are sitting in breach dumps right now. Here is how to check yours safely in under five minutes, including a PowerShell one-liner, and the exact steps to take if you find a match. Account Security https://peregrinotech.com/tips/nmap-for-network-admins-10-commands https://peregrinotech.com/tips/nmap-for-network-admins-10-commands Tue, 20 Oct 2026 00:00:00 GMT Nmap is the tool attackers use to map a network before they strike. Run it on your own network first and you will find the forgotten printer with an open admin page before they do. Ten commands, from a basic sweep to a full inventory. Networking