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How to Know If Your Phone Is Hacked

How to know if your phone is hacked

Reviewed by Jacob Williamson

Updated Jul 22, 2026

⏩ The 30 sec summary

Our phones now hold everything from personal photos to business banking and confidential files, which makes them a prime target for hackers. This post covers how to spot the warning signs that your mobile has been compromised, such as unexpected battery drain, unfamiliar apps or data usage spikes. We also bust the myth that switching your phone off keeps you safe, and point you towards devices with stronger built-in security if you’re due an upgrade.

Angelique Caracciolo

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Our advice: Get into the habit of checking your phone for signs of hacking at least once a month, especially if you use it for work.

If you handle sensitive business data, this is worth treating as a standing calendar reminder rather than something you only think about after a scare. Catching an issue early makes it far easier to lock things down before any real damage is done.

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Your phone probably knows more about you than any other device you own, from banking apps to business emails, and that makes it an appealing target for hackers. The tricky part is that a hack doesn’t always announce itself. Sometimes it’s a slow phone or a battery that drains faster than usual, and other times there’s no obvious sign at all.

In this guide, we walk through the practical checks you can run to work out whether your mobile has been compromised, plus a common myth about switching your phone off that’s worth knowing. Whether you’re managing one handset or a whole team’s worth, a few minutes of vigilance each month can save you a serious headache down the line.

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Nowadays we store everything on our mobiles. From personal information, bank details, and even vital business information, our handy little handsets reveal all. This makes life a lot easier, but also means that we become even more vulnerable to hackers.

This may also have you wondering if your mobile has been hacked. So if you want to protect your online information then you need to up your security.

How To Find Out If Your Mobile Phone is Hacked:

Firstly, you will wonder, how do I even know my mobile is hacked? Well, we have the answer! Watch our quick video to spot your mobile and protect it from hacking!

We recommend that you check at least once a month that your mobile hasn’t been hacked. Especially if security is a priority for you, and when using a company phone. Staying safe online is easy when you know what to look out for.

Sometimes, a slow phone just needs some troubleshooting. If you suffer from a slow Apple smartphone, you’ll love our post on how to fix a frozen iPhone in minutes.

Ready to take security to the next level? See our post on how to use an Apple AirTag and what one is.

Turned Off Doesn’t Mean You Are Safe

Did you know that it’s possible to still get hacked even when your mobile is off! Yes, it’s true! To learn more watch our quick video and learn how you can prevent this from happening to you!

We Are Here To Help

We hope you learned something new, and now know how to stay safe from hackers. It’s time to humiliate hackers with superior security. Our list of the Top 10 Best Phones for Business contains top picks for every need, including the best iPhone for security!

Discover incredible company mobile phone deals, or see our business SIM only deals and more. Love Android? Steal the new Samsung Z Flip 4 phone and save on your next business plan. The only thing better than outsmarting a hacker is incredible savings!

Common questions & answers

If we’ve not covered your question here, Book A 15-Min Call with our team to talk about your mobile needs.

📌 The bottom line

Final Thoughts

Hacking isn’t always obvious, which is exactly why it pays to check your phone regularly rather than waiting for something to go visibly wrong. A few simple habits, like watching for unusual battery drain, unrecognised apps or unexpected data usage, go a long way towards catching problems early.

If security is a genuine priority for your business, it’s also worth looking at handsets built with stronger protection in mind when you’re next due an upgrade. Staying one step ahead of hackers is far easier than cleaning up after them, so make that monthly check a habit rather than an afterthought.

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👋 Meet your author

Angelique Caracciolo
Angelique Caracciolo
Marketing Manager

Expert in…

MarketingDesignBusiness Mobiles

Angelique Caracciolo is a Marketing Manager at BusinessMobiles.com, passionate about tech, innovation, and global culture. Since 2020, she’s helped shape creative strategies in the B2B telecoms space. With experience living and working in six countries, Angelique brings a fresh, international perspective to everything she does.

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