Samsung Banking Security: 5 Settings to Change Now
A Samsung phone has most of the tools you need to protect a bank account built in, but a good share of them are turned off until you find them. I went through my Galaxy S26 and picked the five that matter most for banking, and I checked each one against Samsung’s documentation and recent coverage before writing this up.
Some of what I found changed the advice I’d have given a few months ago. Auto Blocker behaves differently since One UI 8.5, and Secure Folder doesn’t suit every banking app anymore. Both are covered below.
KEY TAKEAWAYS
- Auto Blocker is the setting I’d turn on first. It blocks installs from outside the official stores, which is how many banking trojans reach a phone.
- Identity Check keeps a thief who knows your PIN from changing your most sensitive settings, but you have to switch it on and set trusted places yourself.
- Hiding notification content and turning on the clipboard alert cost nothing and take a minute each.
- Secure Folder can add a second lock around a banking app, though Samsung has acknowledged that some banking apps no longer work inside it. Test before you rely on it.
Prefer to watch? Here’s the video.
1. Turn on Auto Blocker
Phone banking attacks usually don’t involve anyone breaking in remotely. The victim installs the app that does the damage, often a file from a link that looked harmless, and once it’s installed it can read the screen and in some cases move money. Auto Blocker is aimed at exactly that step.
Samsung’s support page says it stops installs from unauthorized sources and blocks commands that arrive over a USB cable. It also includes Message Guard, which, according to Samsung’s Knox documentation, runs images from incoming messages through a sandbox so a booby-trapped picture can’t reach the rest of the phone.
The trade-off is that the Play Store and the Galaxy Store are the only places you can install from while it’s on, and developer-style USB connections to a computer are blocked. If you rarely install anything else, you won’t feel it. Turn it on under Settings > Security and privacy > Auto Blocker.
ONE UI 8.5 CHANGED THE “TURN ON AUTOMATICALLY” OPTION
Reports on One UI 8.5 describe this toggle as turning Auto Blocker back on 30 minutes after you switch it off, so a quick sideload doesn’t leave you unprotected if you forget. It doesn’t lock the switch. It’s still worth enabling, and I’d check how it behaves on your phone, because the first reports came from leaked code.
There’s also Maximum restrictions inside Auto Blocker, available since One UI 6.1.1. Samsung says it’s stricter and that some apps and features may stop working. Its contents vary by region and version, so open the screen on your own phone and read what it lists before turning it on. People who need a work profile or device-admin app for their job are the ones most likely to run into trouble. Android Authority reports that the One UI 9 beta adds a Security Report listing blocked installs and makes Maximum restrictions block USB connections completely, which is still beta-only for now.
2. Set up Identity Check and theft protection
Say a thief watched you enter your PIN before taking the phone. With the PIN they can normally change settings and get into a lot. Identity Check, which Samsung added in One UI 7, asks for your fingerprint or face instead when you’re away from your trusted places, so a known PIN isn’t enough to change the protected settings.
It’s off by default. Go to Settings > Security and privacy > Lost device protection > Theft protection, turn on Identity Check, and add the places you trust, like home and work. If you skip the trusted places, the protection doesn’t work the way it should.
Leaked code and beta coverage of One UI 8.5, including an Android Authority teardown, suggested Identity Check would also cover turning off Auto Blocker, unlocking Secure Folder and changing USB settings. I couldn’t find Samsung’s final list for the stable release, so check the Identity Check screen on your phone to see what it protects.
The same menu has other options, depending on your model and software: Theft Detection Lock, which locks the screen if it senses a grab-and-run, Offline Device Lock, Failed authentication lock after repeated wrong unlock attempts, and Remote Lock for locking the phone from another device. If they’re offered, I’d turn them on.
3. Hide bank notifications on the lock screen
Banks send login codes and balance alerts as notifications, and by default the text shows on the lock screen. Anyone who picks up the phone or sees it on a table can read the code.
Turning those notifications off isn’t a good fix, since you’ll need the codes. What works better is hiding the content. Press and hold the bank app’s icon, tap the small i, open Notifications, and change the lock screen setting so the content is hidden. The alert still arrives, but the details stay hidden until you unlock the phone.
If your bank texts the code instead of using its own app, the Messages app needs the same treatment. You should find the equivalent under Settings > Notifications > Lock screen notifications, though I tested it only through the bank app.
4. Turn on the clipboard alert
When you copy a code to paste it somewhere else, it sits on the clipboard for a moment, and other apps can read the clipboard. Samsung has an alert that tells you when that happens. It’s off by default.
On my phone it’s under Settings > Security and privacy > Controls and alerts, the toggle named Alert when clipboard accessed. Other One UI versions place it under Additional privacy controls, so search Settings for “clipboard” if you can’t spot it.
It’s a warning, not a block. A keyboard or a password manager will trigger it for good reasons, so the notification itself isn’t evidence of anything. It helps when it appears for an app that has no business reading what you copied.
5. Secure Folder, with a caveat
Secure Folder is an encrypted space on the phone with its own lock, separate from your screen lock. Apps outside the folder can’t see what’s inside, and you can hide the folder entirely. Someone who watched you enter your phone PIN still faces a second code or fingerprint before reaching what’s in it.
To set it up, go to Settings > Security and privacy > More security settings > Secure Folder, sign in with your Samsung account, choose a lock that’s different from your phone’s, and add a fingerprint. Then open the folder, tap the plus, and add your banking app. That installs a second copy, and you log in to that one separately.
CHECK THIS BEFORE YOU DELETE ANYTHING
Samsung Community threads from 2026 show some banking apps failing inside Secure Folder. In one thread a Samsung moderator said recent Google API changes cause compatibility problems with some banking apps and recommended using them outside the folder. It varies by app, since other people report no trouble. On my Galaxy S26 the app I tried worked, but I’d log in, make sure it really works, and keep the original until you’re sure.
If your bank’s app doesn’t work in there, skip this step. The first four settings give you most of the protection anyway.
Where I’d start
I’d go with Auto Blocker first, then Identity Check with trusted places, since those two cover the most likely ways banking goes wrong: a bad install and a stolen phone. Hiding lock screen content and the clipboard alert are quick extras. Secure Folder comes last because it’s the one that depends on your particular bank app.
None of these makes a phone immune, and your bank’s own transaction alerts and limits are worth turning on as well. This is general information, not financial advice.
Questions people ask
Will Auto Blocker stop my banking app from working?
No. Banking apps come from the Play Store or the Galaxy Store, which Auto Blocker allows. It blocks installs from other sources. On my phone nothing broke after I turned on Auto Blocker and Secure Folder.
Can I still sideload an app with Auto Blocker on?
Not while it’s on. You can switch it off for a moment, and on One UI 8.5 the Turn on automatically option is reported to switch it back on after 30 minutes.
Does the clipboard alert block apps from reading what I copied?
No, it only warns you. If an app you don’t trust keeps triggering it, removing that app is the real fix.
Is Identity Check on by default?
No. You have to turn it on in Theft protection and set your trusted places.
My bank app won’t open inside Secure Folder. What now?
Samsung’s own recommendation in forum replies is to use the bank app outside the folder. Make sure the phone’s system and Google Play system updates are current, and check with your bank.
Do these settings exist on older Galaxy phones?
Auto Blocker and Secure Folder are on many recent Galaxy phones, but menu names and some options, like Maximum restrictions and Identity Check, depend on your model and One UI version. I tested on a Galaxy S26.
Which of these were off on your phone? Tell me in the comments, with your model.
