https://helpforum.sky.com/t5/Sky-Mobile/Unexpected-data-usage/m-p/5142111#M274764 <P>Hi&nbsp;<a href="https://helpforum.sky.com/t5/user/viewprofilepage/user-id/4535724">@Mamakay1</a>&nbsp; your phones data monitor should show what's using most data. Another customer reported the same yesterday and found it was antivirus software/app they had installed was using the data.&nbsp;</P> Sat, 15 Nov 2025 08:48:48 GMT 63johnw 2025-11-15T08:48:48Z https://helpforum.sky.com/t5/Sky-Mobile/Unexpected-data-usage/m-p/5142101#M274761 <P>My data usage has been unusually high for the last two months but I haven't changed my behaviour online I don't think, how do I check what my actual usage is and how it has been used. I originally had 50gb and consistently used 10gb so I reduced the sim to 25gb and am running out mid month! Can't see how my usage patterns have changed.&nbsp;</P> Sat, 15 Nov 2025 08:18:59 GMT https://helpforum.sky.com/t5/Sky-Mobile/Unexpected-data-usage/m-p/5142101#M274761 Mamakay1 2025-11-15T08:18:59Z https://helpforum.sky.com/t5/Sky-Mobile/Unexpected-data-usage/m-p/5142111#M274764 <P>Hi&nbsp;<a href="https://helpforum.sky.com/t5/user/viewprofilepage/user-id/4535724">@Mamakay1</a>&nbsp; your phones data monitor should show what's using most data. Another customer reported the same yesterday and found it was antivirus software/app they had installed was using the data.&nbsp;</P> Sat, 15 Nov 2025 08:48:48 GMT https://helpforum.sky.com/t5/Sky-Mobile/Unexpected-data-usage/m-p/5142111#M274764 63johnw 2025-11-15T08:48:48Z https://helpforum.sky.com/t5/Sky-Mobile/Unexpected-data-usage/m-p/5143689#M275000 <P>Ah I did install antivirus software - and a vpn - maybe it's that I'll have a look thank you so much&nbsp;</P> Mon, 17 Nov 2025 11:53:42 GMT https://helpforum.sky.com/t5/Sky-Mobile/Unexpected-data-usage/m-p/5143689#M275000 Mamakay1 2025-11-17T11:53:42Z