GIFShell Archives - Practical 365 Practical Office 365 News, Tips, and Tutorials Tue, 28 Feb 2023 12:35:37 +0000 en-US hourly 1 https://wordpress.org/?v=6.3.2 https://practical365.com/wp-content/uploads/2022/06/favicon.png GIFShell Archives - Practical 365 32 32 Stop GIFShell Attack by Modifying Teams External Access https://practical365.com/stop-teams-gifshell-attack/ https://practical365.com/stop-teams-gifshell-attack/#comments Fri, 09 Sep 2022 15:57:01 +0000 https://practical365.com/?p=57176 The GIFShell attack describes how attackers can penetrate Teams to run commands using special GIFs, including the ability to exfiltrate data. One practical and quick way to stop similar attacks is to limit the set of Teams organizations your tenant will communicate with by establishing an allow list for external access.

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