Technologies

Is It Really Safe to Buy an Old or Used Phone? Here’s What You Need to Know

It might not be safe to use an older or used phone. Here’s how you can be sure and how to protect yourself.

The best phones you can buy right now all come with top specs, a plethora of features and pro-level camera systems. But these flagship handsets, like the iPhone 16 Pro and Samsung Galaxy S25 Ultra, also demand a lot of cash if you want to slide them into your pocket. It’s no surprise that many of us look toward more affordable options instead of opting for the latest model. You can save a bundle by looking toward used or older devices. After all, older hardware is usually fully capable of handling what you need it to, and it’s more environmentally friendly to keep using phones for longer, rather than sending them to landfill.

But while these old smartphones might be cheaper, they may not be safe to use, especially if you bought a used phone that’s more than a few years old. The problem is that older phones might run outdated versions of Android or iOS, which means they often don’t have critical security updates that can keep you and your data safe.

If you’re concerned about security and privacy — and you should be — here are some things to consider.

Read more: Make Your Phone Last for Years With These Easy Tips

What is a security patch for a phone OS?

Hackers are constantly looking for cracks and holes in your phone’s software to exploit. Whenever hackers discover a new hole, phone-makers usually get it fixed, and that fix is sent out to your phone to make sure that nobody can take advantage of it. That’s a security patch. You’ll likely have received plenty of them over time as cybercriminals are always trying to find new ways to circumvent the security on your phone.

It’s a continual game of cat and mouse, with hackers finding holes and software providers patching them up. And on the cycle goes. Most of the time, you’ll never know about it, but it’s the thing that’s keeping your phone up to date and protected against known threats.

Why do manufacturers stop sending out security patches?

All manufacturers including Samsung, Sony, Google and OnePlus only provide support to a phone for so long. Each new handset that’s released and each new version of Android requires new threat assessment and patching. That’s a lot of work, and it means that finding and patching those holes for every single handset spanning years and years just becomes unfeasible.

As a result, Google and the phone-makers eventually have to cut off support for older handsets. Those handsets then will no longer receive security updates, meaning that when a threat is detected on that phone, it simply won’t be fixed.

So is using an out-of-date phone safe?

As Christoph Hebeisen, director of the security intelligence company Lookout, explained, «We do not consider it safe to run a device that does not receive security patches. Critical security vulnerabilities become public knowledge every few weeks, or months, and once a system is out of support, then users who continue to run it become susceptible to exploitation of known vulnerabilities.»

According to Hebeisen, a vulnerable phone could allow full access to everything that’s on your phone, including your personal and company emails, contact information, your banking details or audio of your phone calls. A hacker could continue to have access to this information for as long as you continue using the compromised handset.

How do I know if my phone is too old?

Finding out if your phone is still supported and receiving security patches often isn’t straightforward. To start, go into Settings and check your software updates. Install the latest version that’s available. Usually it’ll give you some indication of when the phone was last updated. If your phone says it has the latest OS software, but that latest version was installed many months or even years ago, it’s bad news. Your phone is probably no longer supported.

Sadly, manufacturers don’t give you a warning that tells you when they’ve dropped support for a phone, so you either find out through a rude awakening like I mentioned above, or figure it out yourself through some other means.

Previously it was common that phones may only be supported for a few years, but thankfully most companies — including Google and Samsung — have upped their game, offering support for at least seven years on their recent generations of phone. Google’s latest Pixel 9 and 9 Pro will still be safe to use into 2031, while Apple’s iPhone XR, released six years ago, is still compatible with the latest version of iOS. Companies such as Fairphone take that even further, promising at least eight years of support, while even budget phones like the Nothing CMF Phone 2 Pro come with six years of support.

But longer support periods have been something of a recent trend so if you’re buying an older-generation phone on the used market, it’s possible its support period may be shorter, and may even be out of support already.

Finding out if your Android phone is supported will involve some digging. Samsung sent me its list after I contacted its PR team, and it’s available online here, and while it makes it clear which phones are currently supported with updates, it doesn’t say for how long those updates will continue. Google has a page that clearly tells you when your Pixel or Nexus phone will lose security support. (Spoiler alert: All Nexus and Pixel phones up to and including 2021’s Pixel 5A are all out of their official support periods.)

Your best place to start is with the support pages on your phone manufacturer’s website. You might not notice immediately if your phone is out of date. The most obvious sign you’re on old software might be when you look for new apps to download. Many apps will simply be incompatible due to the software and hardware limitations on your phone and you won’t be able to install them.

How can I tell if my phone has been hacked?

Whether you’d ever notice if your phone’s security was compromised is difficult to say. Cybercriminals don’t exactly make it known they’ve accessed your device, so you’ll need to look for signs. Popups that might appear on the phone are a big giveaway, as are any apps that suddenly appear that you didn’t download.

Also watch out for unexplained high data usage, as it could be that malicious apps are using a lot of data in the background. Other indicators can also include unusually high battery usage and sluggish performance, but both of these can also be attributed to using older hardware that degrades over time.

Read more: Best Android VPNs

How can I keep myself safe if I have an old phone?

As Hebeisen says, the best way to keep yourself safe is simply to not use a phone that’s no longer supported. If you’re short on money, can’t afford to upgrade just yet or you’re using an older phone temporarily for whatever reason, there are a couple of things you can do that could help.

First, you should make sure the phone has the latest software installed. If you bought it used, make sure to fully factory-reset the phone. Ensure that you only download apps from the Google Play Store (rather than from third-party or unofficial app stores) and certainly avoid installing apps by downloading the APK file from a website. This can often be a way that malicious software weasels its way into a phone.

You can help protect your personal information by simply not giving too much away in the first place. Don’t do any banking on the phone, don’t sync your company email accounts and don’t send sexy pictures or have sexy video chats until you’re back on a protected device. (Even over a phone, it’s important to practice safe sex.)

According to Hebeisen, if you don’t take such precautions, «this might enable an attacker to observe and manipulate almost everything happening on the device.» That’s a cold shower, right there.

Technologies

I Used to Tell People Wi-Fi 7 Routers Were a Waste of Money. CNET’s Lab Data Just Proved Me Wrong

Technologies

My Camera Test: Comparing the $499 Pixel 10A With the Galaxy S25 FE, Motorola Edge

The Pixel 10A’s cameras are similar to those on the 9A, but it still performs quite well compared to other phones in its price range.

Google’s $499 Pixel 10A uses nearly the same cameras as last year’s Pixel 9A, but I wanted to see how its photos directly match up to its midrange Android rivals: the $650 Samsung Galaxy S25 FE and the $550 Motorola Edge.

I traveled with all three phones around St. Petersburg, Florida, checking how flexible each was in different environments, from bright outdoor settings to an indoor coffee shop and an evening brewery. All three environments can be challenging for the small image sensors on each phone.

While I find the cameras on all three phones to have different strengths and weaknesses depending on the setting, I’m quite impressed with how the Pixel 10A keeps up. In my tests, the photos include lots of detail, even though certain settings appear to involve a lot of processing to improve them.

Wide and telephoto cameras

Starting with photos taken on the sidewalk in downtown St. Petersburg, I notice that all three phones handle bright sunlight slightly differently, especially how it’s depicted on the street.

For the Pixel 10A, the sun provides a slight exposure mark over the Bay First sign at the top of the frame, but it remains fairly cordoned off to focus on the rest of the streetscape. Zooming in, you can see the Century 21 location, but the street is captured in the most detail, with the phone’s camera maintaining its natural gray color.

For both the Galaxy S25 FE and the Motorola Edge, the sun has a more pronounced effect on the rest of the image. The pavement’s color is notably brighter. I also find both the S25 FE and the Edge have slightly more clarity on the business signs on the Bay First building, including the aforementioned Century 21 logo.

Since the S25 FE and the Edge each include a telephoto camera that supports 3x optical zoom, I took a photo at that zoom with each phone. The Pixel 10A uses digital zoom on the phone’s 48-megapixel wide camera, but a lot of the scene’s detail remains preserved.

The Pixel’s zoom photo provides a clear view of the 7th St N sign, the trees and the plants. However, if you look further back at the next intersection, you’ll notice that the 7th St S sign and the Colony Grill are much harder to see. It’s those smaller details that are captured by the S25 FE and the Edge, both aided by telephoto cameras, making them more visible.

Of the three zoom photo examples, I feel like the S25 FE has the best color reproduction while also retaining details like the signs further back. Even though the photo was taken with the S25 FE’s 8-megapixel telephoto camera rather than its 50-megapixel wide camera, the colors remain complementary when comparing the 1x to the 3x. Meanwhile, the Edge’s 10-megapixel telephoto camera looks quite a bit different from the 50-megapixel wide camera — the whole image has a more yellowish hue.

Ultrawide cameras

Moving inside the Southern Grounds coffee shop, I decided to use the ultrawide cameras to capture my sausage, egg and cheese on toast. The three photos came out wildly different.

The Pixel 10A’s 13-megapixel ultrawide and S25 FE’s 12-megapixel ultrawide have a more balanced set of colors and details, in my opinion. The wheat toast appears lighter in the Pixel’s photo than in the darker hues captured by both the S25 FE and the Edge.

When zooming into my notebook, however, the Pixel and S25 FE captured more of the page markings, details that blur together more in the photo taken by the Edge. While the Edge’s 50-megapixel ultrawide camera is a higher-spec number, I noticed it had a harder time distinguishing toast levels, giving more of it a darker look. If I hadn’t eaten it myself, I’d have thought it was burned based on the Edge’s photo.

Night photography

Moving over to a nighttime setting, I used the three phones to take photos outside of 3 Daughters Brewing. I felt like all three did a decent job at producing the colors of the building, but they differ in how they handle light sources.

Both the Pixel and the S25 FE tone back the glare produced by the various lighting fixtures. Meanwhile, the Edge’s photos show noticeable streaks that dominate the sky. When inspecting the photos more closely, I find that the Galaxy captured a sharper view of the furniture, like in the Connect 4 set next to the blue chairs in the center of the frame. The same details are visible in the Pixel’s and the Edge’s depictions of the scene, but they appear smudgy by comparison.

This type of scene needs to take advantage of a phone’s processing power in order to iron out visibility issues, and I do find that the Edge appears to come up short here in this regard, with a lot of noticeable image noise.

Selfies

Each phone takes selfies with noticeable differences in style and color choices. For this test example, I’m in a well-lit daytime room with natural light from a window. The 12-megapixel front-facing camera on Google’s Pixel 10A brightened up my face as if there was a light in front of me, and captured a decent amount of the details of my hair and face.

The front-facing camera on Samsung’s Galaxy S25 FE shows a noticeably darker color tone, but it still captures a similar shade of orange on the wall behind me. Of the three photos, I felt like the S25 captures the most details, including strands of hair, and defaulted to a closer crop than the other two.

The photos taken by the 50-megapixel selfie camera on the Motorola Edge feel a bit smoothed out. The orange color on the wall is noticeably different from the Pixel and the S25 FE, though it does capture a lot of my face details, from hair strands to the fabric textures on my shirt.

The $499 Pixel 10A camera keeps up and, in some cases, exceeds the detail captured by the slightly more expensive $550 Motorola Edge and $650 Galaxy S25 FE. I’m quite impressed by how the Pixel camera handles colors and low-light environments, but the phone’s processing work sometimes makes scenes appear brighter than they are in real life.

The Galaxy S25 FE is no slouch either, with a third telephoto lens for capturing more detail farther away. While I did find the Motorola Edge to struggle in low light, it is one of the lowest-cost phone options currently available for someone who must have a 3x optical telephoto camera.

But if you can live without the telephoto lens, the Pixel 10A’s low cost and photography abilities will likely be a good fit for most people.

Google’s Pixel 10A Looks Stylish for a Low-Cost Flagship Phone

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Technologies

Today’s NYT Strands Hints, Answers and Help for March 14 #741

Here are hints and answers for the NYT Strands puzzle for March 14, No. 741.

Looking for the most recent Strands answer? Click here for our daily Strands hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle, Connections and Connections: Sports Edition puzzles.

Does today’s date seem memorable to you? If so, today’s NYT Strands puzzle might be easy. Some of the answers are difficult to unscramble, so if you need hints and answers, read on.

I go into depth about the rules for Strands in this story.

If you’re looking for today’s Wordle, Connections and Mini Crossword answers, you can visit CNET’s NYT puzzle hints page.

Read more: NYT Connections Turns 1: These Are the 5 Toughest Puzzles So Far

Hint for today’s Strands puzzle

Today’s Strands theme is: A math teacher’s favorite dessert.

If that doesn’t help you, here’s a clue: 3.14

Clue words to unlock in-game hints

Your goal is to find hidden words that fit the puzzle’s theme. If you’re stuck, find any words you can. Every time you find three words of four letters or more, Strands will reveal one of the theme words. These are the words I used to get those hints but any words of four or more letters that you find will work:

RITE, SPIT, TIPS, STAT, STATE, GIVE, RUST, FINE, LAZE, SURE, PEAL

Answers for today’s Strands puzzle

These are the answers that tie into the theme. The goal of the puzzle is to find them all, including the spangram, a theme word that reaches from one side of the puzzle to the other. When you have all of them (I originally thought there were always eight but learned that the number can vary), every letter on the board will be used. Here are the nonspangram answers:

VENT, CRUST, FRUIT, EDGES, GLAZE, FILLING, LATTICE

Today’s Strands spangram

Today’s Strands spangram is HAPPYPIDAY. To find it, start with the H that’s six rows down and three to the right from the upper-left corner, and make — well, a pie shape.