X-rays at 131: Röntgen's 1895 discovery, and what came next
On 8 November 1895, Röntgen saw a glow that shouldn't exist. How the X-ray was found, why he never patented it, and …
Privacy 55 posts
Information security in plain English: scams, hardening and privacy — plus retrogaming, games and geek culture.
DigiNotar: The Certificate Authority Hacked and Bankrupt in 2011
In 2011, attackers issued 531 rogue DigiNotar certificates, including one for Google. How a CA works, what went wrong …
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 …
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 …
KRACK: the 2017 attack that broke your Wi-Fi's WPA2
On Oct 16, 2017, the KRACK research showed WPA2 could be bypassed without knowing the Wi-Fi password. How the attack …
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 …
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 …