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No—not automatically. On a Samsung Galaxy, “locked” can mean a message is protected from deletion, a conversation is end-to-end encrypted, or content is stored behind Secure Folder access controls. These are different protections. For encryption while a message is being sent, check which app and messaging protocol you’re using and, in Google Messages, look for its specific encryption indicator.
What “locked” can mean on a Galaxy
| What you see or use | What it protects | Does it prove encryption in transit? |
|---|---|---|
| “Lock message” in some versions of Samsung Messages | A legacy Samsung manual describes this as protecting a selected message from deletion unless the user also chooses to delete locked messages. Menus can vary by model and software version; see the Samsung manual. | No. The described function concerns deletion, not encryption. |
| Encryption lock in Google Messages | End-to-end encryption (E2EE) for eligible RCS messages. Google identifies a lock on the send button and beside the message timestamp as the indicator that E2EE is active. | Yes, for the message when that indicator is present. Google explains the indicator and eligibility. |
| Samsung Secure Folder | Access to apps and files placed in the separate protected area, secured with a PIN, password, pattern, or supported fingerprint. Samsung also documents an enhanced-encryption option. | No. Secure Folder is an access and storage feature, not proof that an ordinary SMS or RCS message was encrypted when sent. Samsung Secure Folder guidance. |
The legacy Samsung manual is a version-dependent reference, so check the exact menu on your phone rather than assuming every Samsung Messages version behaves the same way.
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How to tell whether a Google Messages conversation is encrypted
- Check the app. Confirm that you’re using Google Messages, not Samsung Messages or another messaging app. App features and indicators are not interchangeable.
- Check the message type. In Google Messages, an “RCS message” label indicates RCS; “Text message” or an SMS/MMS label indicates carrier messaging. Google’s RCS security guidance distinguishes the types.
- Look for the E2EE lock. Check for the lock on the send button and beside the message timestamp. Do not infer encryption from a generic lock, message color, or the word “locked.”
- Check both participants and the connection. Google says its described E2EE support requires both people to use Google Messages with RCS turned on. Encrypted delivery also requires data or Wi-Fi.
Google states that E2EE is not available for SMS/MMS. If RCS is disabled or unavailable and a message is sent as SMS/MMS, that message is not end-to-end encrypted. RCS without E2EE may have transport-layer protection from Google, but TLS is not the same as E2EE: with end-to-end encryption, the message is protected between the participants’ devices rather than merely over a connection. See Google’s E2EE explanation and RCS security details.
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Secure Folder protects access to stored content
Secure Folder can restrict access to apps and files placed inside it, but it does not switch on E2EE for messages sent through the phone’s ordinary messaging app. Samsung also notes that notifications may appear while Secure Folder is locked depending on settings. If your concern is someone seeing message previews, review Secure Folder’s notification settings as well as its access lock.
#1 Best Overall
- PRIVACY DISPLAY: Automatically hide your screen from those beside you. The built-in privacy display can be preset¹ to turn on when receiving notifications, typing passwords, or using specific apps
- TYPE IT IN. TRANSFORM IT FAST: Enhance any shot in seconds on your smartphone by using Photo Assist² with Galaxy AI.³ Add objects, restore details, or apply new styles by simply typing or tapping
- NIGHTS, CAPTURED CLEARLY: From gigs to city lights, record and capture moments after dark with clarity using Nightography so your photos and videos stay crisp and clear on your Samsung Galaxy
- MAKE IT. EDIT IT. SHARE IT: Turn everyday moments into something personal with creative tools built right into your mobile phone, whether it’s a special contact photo, custom wallpaper, an invitation or more⁴
- HELP THAT KEEPS UP: Stay in the moment while Now Nudge with Galaxy AI helps you respond faster and stay organized with smart suggestions⁵ that appear exactly when you need them on your phone
Samsung Messages availability depends on region and device
Samsung’s US support page says Samsung Messages is being discontinued in the US and recommends Google Messages, with an exception for users on Android 11 or lower. That notice is specific to the US; it should not be treated as a worldwide end-of-service date. Samsung says availability and timing can vary by device and operating system. Check the current notices for your region: Samsung’s US Messages page and Samsung’s Messages app support page.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Android-to-iPhone RCS encryption is rolling out, not universal
In an announcement dated May 11, 2026, Google said E2EE RCS messaging between Android and iPhone users was beginning a beta rollout. Google specified iPhone users on iOS 26.5 with supported carriers and Android users on the latest Google Messages, and said availability would roll out over time to devices supporting RCS with E2EE enabled. This does not mean every cross-platform RCS conversation is encrypted. For a particular conversation, use Google Messages’ lock indicator to verify whether E2EE is active. Google’s May 11, 2026 announcement describes the rollout.
Quick Recap
Best Value
- TYPE IT IN. TRANSFORM IT FAST: Enhance any shot in seconds on your smartphone by using Photo Assist¹ with Galaxy AI.² Add objects, restore details, or apply new styles by simply typing or tapping
- MAKE IT. EDIT IT. SHARE IT: Turn everyday moments into something personal with creative tools built right into your mobile whether it’s a special contact photo, custom wallpaper, an invitation or more³
- FAST. POWERFUL. AI-READY: Power through your day with AI-accelerated performance from our fastest, smoothest and most powerful Galaxy processor yet, built to keep up with everything you do
- IMMENSELY IMMERSIVE: No matter where you are or what you’re watching, your favorite videos and more come to life with the vibrant display on Galaxy S26
- FIT EVERYONE IN THE SHOT: Group selfies are easier on your Samsung phone with a wider front camera⁴ that captures more of the scene, so no one gets left out of the moment
Rank #4
- YOUR CONTENT, SUPER SMOOTH: The ultra-clear 6.7" FHD+ Super AMOLED display of Galaxy A17 5G helps bring your content to life, whether you're scrolling through recipes or video chatting with loved ones.¹
- LIVE FAST. CHARGE FASTER: Focus more on the moment and less on your battery percentage with Galaxy A17 5G. Super Fast Charging powers up your battery so you can get back to life sooner.²
- MEMORIES MADE PICTURE PERFECT: Capture every angle in stunning clarity, from wide family photos to close-ups of friends, with the triple-lens camera on Galaxy A17 5G.
- NEED MORE STORAGE? WE HAVE YOU COVERED: With an improved 2TB of expandable storage, Galaxy A17 5G makes it easy to keep cherished photos, videos and important files readily accessible whenever you need them.³
- BUILT TO LAST: With an improved IP54 rating, Galaxy A17 5G is even more durable than before.⁴ It’s built to resist splashes and dust and comes with a stronger yet slimmer Gorilla Glass Victus front and Glass Fiber Reinforced Polymer back.
Rank #3
- YOUR CONTENT, SUPER SMOOTH: The ultra-clear 6.7" FHD+ Super AMOLED display of Galaxy A17 5G helps bring your content to life, whether you're scrolling through recipes or video chatting with loved ones.¹
- LIVE FAST. CHARGE FASTER: Focus more on the moment and less on your battery percentage with Galaxy A17 5G. Super Fast Charging powers up your battery so you can get back to life sooner.²
- MEMORIES MADE PICTURE PERFECT: Capture every angle in stunning clarity, from wide family photos to close-ups of friends, with the triple-lens camera on Galaxy A17 5G.
- NEED MORE STORAGE? WE HAVE YOU COVERED: With an improved 2TB of expandable storage, Galaxy A17 5G makes it easy to keep cherished photos, videos and important files readily accessible whenever you need them.³
- BUILT TO LAST: With an improved IP54 rating, Galaxy A17 5G is even more durable than before.⁴ It’s built to resist splashes and dust and comes with a stronger yet slimmer Gorilla Glass Victus front and Glass Fiber Reinforced Polymer back.
Rank #2
- Please note, this device does not support E-SIM; This 4G model is compatible with all GSM networks worldwide outside of the U.S. In the US, ONLY compatible with T-Mobile and their MVNO's (Metro and Standup). It will NOT work with other CDMA carriers, and it is also not compatible with their MVNO (Visible, Xfinity Mobile, US Mobile, Cricket Wireless, etc).
- Compatibility with certain third-party devices and accessibility accessories, including some hearing aids, may vary depending on manufacturer support, Bluetooth protocols, software compatibility, and regional firmware limitations. For additional hearing aid compatibility information, please refer to Samsung’s official support documentation.
- Camera: 50 MP, f/1.8, (wide), 1/2.76", 0.64µm, AF | 50 MP, f/1.8, (wide), 1/2.76", 0.64µm, AF | 2 MP, f/2.4, (macro). Battery: 5000 mAh, non-removable | A power adapter is NOT included.
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