Angelos Stavrou

3 talks in the archive.

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Black Hat·25 min

Black Hat
Mobile
Date: 2025
Location: Black Hat

(Un)protected Broadcasts in Android 9 and 10

Mohamed Elsabagh · Ryan Johnson · Angelos Stavrou

Analysts investigate attack surfaces and defenses concerning (Un)protected Broadcasts in Android 9 and 10.

androidprotectedbroadcast+1

Main Stage·43 min

DEF CON
Mobile
Date: Aug 2023
Location: Las Vegas

Still Vulnerable Out of the Box

Ryan Johnson · Mohamed Elsabagh · Angelos Stavrou

Audits 21 prepaid and 11 unlocked Android smartphones, uncovering privilege escalation, arbitrary file access, and remote command execution in preloaded firmware.

androidpre-installed-appsoem+2

Black Hat Asia·26 min

Black Hat
Mobile
Date: 2022
Location: Black Hat

Start Arbitrary Activity App Components as the System User Vulnerability Affecting Samsung Android

Ryan Johnson · Mohamed Elsabagh · Angelos Stavrou

Investigates start Arbitrary Activity App Components as the System User Vulnerability Affecting Samsung Android and evaluates key implications for security practitioners.

start-arbitraryarbitrary-activityactivity-components+2