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???? There comes a time when our once beloved gadgets, such as phones, computers, and tablets, finally retire. However, before we sell them or give them away, we should remember one very important step - deleting all data from them. And do it effectively. Why is it so important? Sources: ???? For Sale on eBay: A Military Database of Fingerprints and Iris Scan, NYT https://nyti.ms/44Er51r ???? New, store-bought SSD has ≈800GB worth of instrument software on it, reddit https://bit.ly/3NZSrsZ ???? Hide and seek over die Biometrie-Datenbank des US-Militärs, ccc.de https://bit.ly/3nFgHpw ???? What to do before getting rid of an iOS device? https://apple.co/2vQjQam ???? How to Encrypt Your Samsung Phone https://bit.ly/3MaXtkT ???? Android's factory reset has a security problem. Here's how to fix it. The Verge. https://bit.ly/3ps2nAW ???? Everything You Need to Know About the DoD 5220.22-M Disk Wiping Standard & Its Applications Today https://bit.ly/44MoB0M ✏️ ASUS Secure Delete - FAQ https://bit.ly/3HUr2Ve ???? Image source from the recovery menu, CC-BY-SA 4.0 license https://bit.ly/3MgsJPD ???????? SSD manufacturer software: Samsung: https://bit.ly/44Ik2EQ Seagate: https://bit.ly/3BtmGkB Western Digital: https://bit.ly/44KGcGr Crucial: https://bit.ly/3B6E3HH Sabrent: https://bit.ly/3HUg81R Adata: https://bit.ly/3nD917f SK Hynix: https://bit.ly/3NTvrLS Kingston: https://bit.ly/3HSrGCA If you don't trust shortened links (very good!) add a plus '+' at the end of them. This way you can see where they lead on the bit.ly page. Relevant xkcd: https://xkcd.com/2143/ © All trademarks are the property of their rightful owners. ❤️ Thank you for your attention. You can also find me on: Instagram @mateuszemsi / mateuszemsi Twitter @MateuszChrobok / mateuszchrobok Mastodon https://infosec.exchange/@mateuszchrobok LinkedIn @mateuszchrobok / mateuszchrobok Patronite @MateuszChrobok https://patronite.pl/MateuszChrobok Podcasts on: Anchor https://anchor.fm/mateusz-chrobok Spotify https://open.spotify.com/show/6y6oWs2... Apple Podcasts https://apple.co/3OwjvOh Chapters: 00:00 Intro 01:11 Zeroing 03:31 Phones 07:14 Disks 11:12 Conclusions 12:17 What to Do and How to Live? #security #data #format #deleting #smartphone