Galaxy S7 and S7 Edge units bonded with AT&T are getting latest security patch from their carrier AT&T. The update arriving as build G930AUCS4BQE1 for AT&T S7 while G935AUCS4BQE1 for AT&T S7 Edge. The update installs security patch for the month of May, 2017 along other minor improvements and bug fixes. The update weighs around 41MB and is now live via OTA as we speak so if you are a user of AT&T S7/S7 Edge then the update is going to hit your device anytime soon. Also follow the update by going through Settings > About device > System updates.
You can also get it via Samsung Kies as well, follow this guide to update AUCS4BQE1 firmware on AT&T S7 and S7 Edge via Kies.
The Stock Nougat firmware has been releases for this device a few weeks back now AT&T is providing regular security updates. Although these updates look minor but are very important too, the purpose of security updates is to protect your device from Malware and Exposures that mostly come through internet.
If you think the Kies method remained unhelpful then follow this guide to update your AT&T S7/S7 Edge on AUCS4BQE1 firmware via Odin.
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