How to Create a Strong Password: 6-Word Passphrase (Diceware)
A password full of symbols is not a strong password. Learn how to build a 6-word Diceware passphrase, when to use it and …
Opsec 46 posts
Information security in plain English: scams, hardening and privacy — plus retrogaming, games and geek culture.
Hacked Google account: what to do in the first hour
Google account or Gmail hacked? Learn the signs, how to regain access, what to check (forwarding, apps) and how to lock …
Stolen phone: what to do in the first hour (SIM, Pix, accounts)
Phone stolen? First-hour checklist: Brazil's Celular Seguro, SIM and IMEI blocking, banks, Google/Apple accounts, and …
How to Turn On BitLocker in Windows 11 and Save the Key
How to turn on BitLocker in Windows 11 (Home and Pro), where the 48-digit recovery key lives and how to check that your …
Infostealer: what it is and how to tell if you're infected
An infostealer steals saved passwords, session cookies and crypto wallets from your browser. See how it spreads, the …
Hacked Instagram account: what to do in the first 30 minutes
Instagram hacked? Learn the warning signs, what to do in the first 30 minutes, how to recover the account and lock it …
BadUSB: how a USB drive becomes a hacker keyboard (and defenses)
BadUSB and Rubber Ducky make a USB drive type commands on its own. See how it works, the FIN7 case, and how to block and …
WhatsApp cloned: 6 signs and what to do in the first minutes
Lost access or contacts getting Pix money requests? Learn 6 signs of a cloned WhatsApp, how to recover the account and …
SSH Hardening on Linux: 7 Essential Settings to Secure Remote Access
SSH exposed to the internet is a constant target of brute-force attacks. Here are 7 essential hardening settings to …
Kevin Mitnick: the story of the FBI's most wanted hacker
From teenage phreaker to FBI fugitive: how Kevin Mitnick became the most famous hacker in history and what his story …