Konstantinos (Kosta) Xynos
@kxynos.bsky.social
PhD. IT Sec. architect and ISO at an Automotive OEM. Computer Security & Forensics Consultant, ex-Educator & Researcher. S/W and H/W hacking. @kxynos@mastodon.social
Twitter:@kxynos
https://kosta.xynos.eu
Twitter:@kxynos
https://kosta.xynos.eu
Reposted by Konstantinos (Kosta) Xynos
turns out this device (GT-S6810P) straight up gives you a root shell if you connect to the serial port when it's in battery charging mode (?!?!???)
November 16, 2025 at 8:15 PM
turns out this device (GT-S6810P) straight up gives you a root shell if you connect to the serial port when it's in battery charging mode (?!?!???)
You can stop the alteration from happening by partially swiping up to change app and taking a screenshot with the buttons.
November 16, 2025 at 9:29 PM
You can stop the alteration from happening by partially swiping up to change app and taking a screenshot with the buttons.
r2con link is to 2024 and not 2025 videos
October 27, 2025 at 1:29 PM
r2con link is to 2024 and not 2025 videos
Reposted by Konstantinos (Kosta) Xynos
Anyway, if you want to get started in Bluetooth with something more tool-using than spec-reading, I recommend taking this class! As the graph shows, it could take between 4-15h but it’ll probably be around 8h ost2.fyi/BT2222
October 20, 2025 at 10:41 AM
Anyway, if you want to get started in Bluetooth with something more tool-using than spec-reading, I recommend taking this class! As the graph shows, it could take between 4-15h but it’ll probably be around 8h ost2.fyi/BT2222
zimperium.com/blog/insecur... - the report
Insecure Mobile VPNs: The Hidden Danger
Many free mobile VPN apps are insecure, exposing user data and enterprise information to significant risk. Learn about the hidden dangers and vulnerabilities in these apps.
zimperium.com
October 4, 2025 at 8:22 PM
zimperium.com/blog/insecur... - the report