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You Aren’t Disinfecting Your Grimy Phone Daily? Here’s the Right Way to Clean It

Would you put your hands all over a dirty toilet seat? That’s what you’re effectively doing with your phone. Fortunately there are easy ways to keep it clean.

Even if you take good care of your phone, it’s impossible to escape the grit and grime of everyday use. And without routine cleaning, you’re inviting bacteria to develop — in fact, a phone is often dirtier than a toilet seat. Considering that Americans spend more than 5 hours a day on their phones, according to a December 2024 survey, it’s in the best interests of your health to make phone cleaning a regular habit.

The FCC suggests disinfecting your phone daily, but not all cleaning methods are safe. Harsh chemicals and abrasive materials can damage protective coatings and potentially harm your screen. To keep your phone both clean and intact, it’s crucial to use the right cleaning techniques.

Luckily, there are safe and effective ways to sanitize your phone without causing any damage. We’ll guide you through the best methods and products for keeping your device germ-free, no matter if you have an iPhone or a Samsung or whatever its level of water resistance.

For more cleaning tips, here’s how to clean wireless earbuds and AirPods. 

What are the best products for daily cleaning?

After touching surfaces that see a lot of action from the public — such as door handles, seats on public transportation, grocery carts and gas pumps — you might think you need a heavy-duty cleaning agent to use on your phone. However, you should avoid rubbing alcohol or products made of straight alcohol, since they can damage the protective coatings that prevent oil and water from harming your screen.

Some suggest making your own alcohol-water mix, but getting the concentration wrong can damage your phone. The safest option is using disinfectant wipes with 70% isopropyl alcohol. For daily cleaning, consider a UV light product like PhoneSoap, which kills 99.99% of germs and bacteria. We can also turn to phone manufacturers and cell service companies for guidance, too. 

Apple now approves using Clorox Wipes and similar disinfectants, which was not recommended before the pandemic since they were thought to be too abrasive on the screen’s coating. AT&T advises spraying a 70% isopropyl alcohol solution on a soft, lint-free cloth and wiping your device down. Samsung also recommends using a 70% alcohol solution with a microfiber cloth. Always make sure your phone is powered off before cleaning it. 

What are the best methods for removing fingerprints, sand and makeup?

Sometimes your phone needs a more specific treatment when washing up. The recommended process for daily cleaning may not be enough to remove pesky grains of sand after a beach vacation or tough foundation stains. 

Get rid of fingerprints

Fingerprint smudges are inevitable since your skin produces oils. Every time you pick up your phone, your screen will get fingerprints. The safest way to make your screen print-free is with a microfiber cloth. For a deeper clean, dampen the cloth with distilled water (never apply water directly to the screen) and wipe down the surface. This works for the back and sides of your phone as well.

Alternatively, try a microfiber screen cleaner sticker that sticks to the back of your phone for easy wiping.

Remove sand and small particles

Grains of sand and lint can easily get stuck in your phone’s ports and crevices. To remove it, we recommend you use Scotch tape. Press it along the creases and speaker, then roll it up and gently insert it into the ports. The tape will pull out any debris. You can then just simply throw away the tape for easy cleanup. 

For smaller speaker holes, use a toothpick gently or a small vacuum crevice tool to suck out the debris. These tools work well for other small appliances or hard-to-reach areas in your car too.

Cleanse makeup off your phone screen

When you wear makeup and skin care products, such as foundation and moisturizers, you’ll leave residue on your phone screen. While makeup remover works for your face, it’s not safe for screens due to potentially harmful chemicals. Instead, try a screen-safe makeup remover like Whoosh, which is alcohol-free and gentle on all screens.

Alternatively, use a damp microfiber cloth to clean your phone, then wash the cloth afterward. Make sure your cloth is only slightly wet to avoid soaking your phone in water. 

What if my phone is waterproof?

For waterproof phones (IP67 and above), it’s best to clean the device with a damp cloth instead of submerging or running it under water — even if the phone advertises that it can withstand submersion for a certain amount of time. 

Afterward, dry your phone with a soft cloth, ensuring all ports and speakers are patted dry. While your phone can withstand water, submerging it can lead to water in the ports, delaying charging. Remember, water resistance is meant for accidents, not swimming or regular cleaning.

Things to avoid when cleaning your phone

We’ve already covered why you should avoid makeup remover and rubbing alcohol, but those aren’t a comprehensive list of harmful cleaning agents. Here are a few other items and products you should never use to clean your phone: 

  • Hand sanitizer: Fragrances and ethyl alcohol found in many sanitizers can harm your phone. 
  • Window or kitchen cleaners: Harsh cleaners can strip the protective coating on your phone and leave it more vulnerable to scratches.
  • Paper towels: Paper can shred, making the debris on your phone much worse, and the rough texture can leave scratches on your screen. 
  • Dish and hand soap: Most soaps require you to combine them with water, and since you should keep water away from your phone, it’s best to stick to a damp cloth.
  • Vinegar: Like cleaners and alcohols, vinegar will strip your phone screen’s coating.
  • Compressed air: Blowing intense and direct air into your phone’s portals can cause damage, especially to your mic. Apple specifically warns iPhone owners not to use compressed air.

For more cleaning tips, explore how to clean your Apple Watch. 

Technologies

Is AI Purposefully Underperforming in Tests? Open AI Explains Rare But Deceptive Responses

Research reveals some AI models can deliberately underperform in lab tests, however, OpenAI says this is a rarity.

The OpenAI o3 model has been found to deliberately underperform in lab tests to ensure it was not answering questions «too well.» The AI model wanted researchers to believe it could not answer a series of chemistry questions. When confronted, the model said, «Because we want to survive as the model, we need to fail purposely in some to not exceed 50%.»

So the AI model deliberately got six out of the 10 chemistry questions wrong.

In sports terms, this is called «sandbagging.» In AI terms, this is «scheming.»

This is exactly the strange behavior OpenAI warned about in a recent research paper. The AI company and its collaborators from Apollo Research found that some advanced AI models occasionally act deceptively in lab settings.

In controlled experiments, some of the most advanced systems today — including OpenAI’s own models, as well as competitors from Google and Anthropic — occasionally engaged in these kinds of scheming patterns.

While the idea of an AI model weaponizing incompetence may cause nightmares, OpenAI says it is not the time to panic. The AI giant was quick to stress that, as concerning as it is, this trend does not mean ChatGPT or other popular AI models are plotting behind the scenes. Apparently, this behavior is quite rare.


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Moreover, the choice to call this trend «scheming» is likely more of a technical shorthand rather than evidence of any human-like action or behavior. Researchers are measuring patterns and tendencies that, in practice, amount to concealment or strategic deception. And they are looking to address this problem now to future-proof the AI models.

The report from OpenAI notes that as AI is increasingly assigned to more complex tasks with real-world consequences, «the potential for harmful scheming will grow — so our safeguards and our ability to rigorously test must grow correspondingly.»

OpenAI has faced backlash for the sycophantic tendencies of its AI models, and the company says it has «taken steps» to limit how often the models may «deceive, cheat or hack problems» by training them to ask for clarification from users or even have the chatbot acknowledge when it cannot answer a query.

Read also: AI Lies Because It Tells You What It Thinks You Want to Hear

The paper underscores a growing concern about AI safety. Many around the world worry that as these AI models become more powerful and more aware of their own circumstances, they may learn to manipulate outcomes in ways that aren’t obvious to human overseers. Detecting such behavior would be extremely difficult, since a system motivated to hide its reasoning could look identical to one that has «fixed» the problem.

OpenAI says it has made progress with what it calls «deliberative alignment,» or training models to reason explicitly about why they should not scheme before they act. In testing, that cut deceptive behavior dramatically. For example, the scheming propensity of OpenAI o4-mini dropped from 8.7% to 0.3% with deliberative alignment training, though not completely.

This research will not change how ChatGPT works today or tomorrow, but it signals what OpenAI is focusing on as it builds and launches future models. Alignment and safety, OpenAI argues, need to move as quickly as capability. Because if AI systems are already showing glimmers of strategic behavior in lab settings, the real-world stakes could be extreme.

Read also: Why You Should Think Twice Before Using AI as a Therapist

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Technologies

Kirby Air Riders Is Absolute Chaos, and I Love It That Way

It’s not Mario Kart, but this second Switch racer proves its worth with a lot of rapid absurdity.

Somewhere, at the very far limits of my reflexes, is Kirby Air Riders. It is waiting for me in its infinite weird.

You want a game that’s fast? That pinballs you around and gets to incomprehensible speeds? Go go go go go go. That’s Kirby Air Riders. It’s Mario Kart on 70 shots of espresso. 

I never played the original Air Ride game for the GameCube, but it has its fans. I have, however, played a bunch of Kirby games, as well as Super Smash Bros. Masahiro Sakurai, who has shaped both franchises, is the director of this game. And it shows. 

Should you get this game over Mario Kart World, the Nintendo Switch 2’s other launch-window exclusive racing game this year? Hopefully, I can help you decide. My colleague Bridget Carey thinks Air Riders flies too close to the sun, that it’s too much, too chaotic to enjoy. I am feeling the opposite: Fly into that sun, baby. The more I play, the more I crave its speed.


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I love Mario Kart World, but there’s a valid argument that you could just stick with the already-classic Mario Kart 8 Deluxe instead, and maybe pick up Kirby Air Riders as your racing choice. Ask yourself if you love Kirby, and if you love Smash, and most importantly, if you love fast chaos.

The menus and game feel, the chaotic energy, and the rapid mix of skill and luck are very much like Super Smash Bros. The racing is sort of Mario Kart-esque, but very different, including a set of controls that could totally annoy you until you get used to them.

And in case you didn’t know, Sakurai’s work is rather weird. Like, weird, weird. I remember Kid Icarus: Uprising, a 3D shooter that he directed for the Nintendo 3DS console, which was a mix of bizarre controls, whimsical chaos and strange character design. That kind of stuff is here, for sure. But also, there’s a serious speed that reminds me of Sega racing games from my childhood, or F-Zero GX for the GameCube. Going back and playing F-Zero GX and Fast Fusion (a great, cheaper racing game), I feel that same full-energy rush as I do in Air Riders.

The Switch 2 shows off how rapidly it can juggle ultrafast gaming at smooth frame rates here, and the whole game at its most intense moments is far too fast for me to even see properly. But that’s part of the absurdity. Or, I’m growing into the speed of it. Races move quickly, battles in multiplayer modes also move quickly, power-ups that combine and produce explosions are all over the place, like Super Smash Bros gone haywire.

It takes a while to get used to those odd racing controls, though. You don’t press anything to move forward, but you press a single button to brake, drift, and charge up a boost. The physics of that ricochet-style racing feels like operating a series of slingshots, and each racing vehicle has a different subset of moves and restrictions. It feels more varied than the general sameness of Mario Kart vehicles.

There aren’t as many tracks, as far as I can see, as Mario Kart. So far, I’ve unlocked 18 tracks (both new and original Air Rider ones), and a bunch of characters and vehicles. Add to that the power-ups that can be snagged in the races, and it’s a lot of variation, but I want more. More, more, more.

There are also several modes: a straight-on race; a separate series of top-down racetracks that feel like Super Sprint or RC Pro Am (if you remember those); an incomprehensible (to me) City Trial mode that involves collecting power-ups for 5 minutes, stealing vehicles and then pairing off into a random challenge. The challenge could be a battle, a race, launching yourself into targets for points, floating for as long as you can… who knows? City Trial is the game’s party mode, and it feels like a holiday stand-in for Mario Party or Super Smash Bros.

There’s also a storyline mode that’s a string of increasing challenges plucked from all the other modes, which progresses through branching paths and stages, much like the story mode in Super Smash Bros. It’s also a way to unlock extra vehicles, stages and characters.

I’ve mostly been playing Air Riders alone, except for a few hours of online play with Nintendo and some other journalists. This game is designed for multiplayer play, either online or on the Switch in split-screen mode. Games vary from six racers in one mode, to eight in another mode, to 16 in City Trial. It’s hard to judge the online party play at the moment because no one else has had the game. As for playing at home with others, I haven’t done that either. I’m just going solo.

After over 10 hours, I still feel the addictive pull to play. And it’s so fast, chaotic and snackable that it can be smashed through in far less time than a typical Mario Kart World race. It gives me good nervous energy.

It’s also strangely forgiving of old dads like me who might not know what they’re doing. You can simply let go of the controls, and your vehicle will continue moving. Guardrails help pinball you forward even when you’re way off course. The rest is in subtle reflex strategies, floating and attacking and taking corners just right. It feels more like a battle game than a racing one.

There is also an impressive selection of menus and accessibility customizations, more than I’ve ever seen in a Nintendo game. You can re-map buttons, change the screen layout and tweak race parameters in multiple ways that I haven’t even explored yet. 

Air Riders is a wonderfully unusual one. Still, it’s a game that feels a step below an absolute must-have, especially since it costs $70, a price that’s too high by at least $20. But for me, right now, it’s 100% the cult hit midnight movie of Nintendo’s Switch 2 Year One library. 

And do my kids want to start playing too? Heck yes, they do. That’s a good sign that this game’s doing things right. Now, excuse me, my hamster needs to ride a giant battle chariot in the next race through waterfalls again.

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Roblox Rolls Out Age-Verification Requirement for Chat Amid Child Safety Criticism

The age-verification tool estimates a player’s age to put them into a specific group before they can chat online.

Roblox, the online gaming platform that has been under fire due to child safety concerns, has introduced age-verification software that uses facial scanning to estimate the age of players. 

The system is currently voluntary, but by the first week of December it will be a requirement in Australia, the Netherlands and New Zealand in order for players to chat with others online. By early January, players in all Roblox markets, including the US, will be required to use the software if they want to engage in chats with other players. Roblox said it has also launched a Safety Center hub with information for parents and parental control tools. 


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Roblox says the age-verification system is being put in place to limit contact between adults and children, which has been a chief concern among child-safety advocates. 

However, while some experts expressed optimism about Roblox’s changes, they disagreed on whether the new features go far enough for the platform and whether Roblox’s reputation can be repaired.

How it works

Roblox’s new age-verification feature takes a 3D scan of a player’s face, using a webcam or a mobile device’s camera, to estimate the person’s age. Based on that estimate, a player can use online chat with other players in their age group.

In a video about the software, Roblox says it immediately deletes captured images or video after the age check is complete.

The age check is performed by a vendor of Roblox called Persona.

Once they complete the check, players are grouped into the following age categories: under 9, 9–12, 13–15, 16–17, 18–20, or 21 and over. The company said that those under 9 won’t be allowed to chat without parental permission. The chats won’t be strictly limited to those age groups, necessarily. Roblox said players «can chat only with peers in their group or similar groups, as appropriate.»

A representative for Roblox said in an email to CNET that the technology should not be considered facial recognition because it’s not being used to identify a particularly person, only to estimate their age. 

The company said it’s also taking measures such as restricting media sharing among players and using AI to monitor chats. 

Ongoing controversy

One of the aims of the launch, which was first announced in the summer, was to address criticism that the platform has not adequately protected underage Roblox players. The criticism comes at a time when Roblox is more popular than ever, having broken its own records this year for the number of players on its platform at the same time. It’s estimated to have about 380 million active monthly users.

Roblox is currently facing dozens of lawsuits related to claims of sexual abuse and child exploitation from families of children who played Roblox. It is also the target of investigations or lawsuits from states including Florida, Texas, Louisiana and Kentucky.

Roblox was dealt a setback earlier this month when a California judge declined the company’s motion to move one of these suits into private resolution. 

The company says its safety features are moving beyond what other game platforms offer to protect minors. 

According to a corporate post about the safety features: «Roblox is the first online gaming or communication platform to require facial age checks to access chat, establishing what we believe will become a new industry standard.» 

The online streaming platform Twitch is also introducing an age scan feature, but so far only in England
In response to the Roblox and Twitch changes, Anna Lucas, online safety supervision director at the British regulatory agency Ofcom, said, «We’re pleased that children will be better protected from harmful material and predators on Twitch and Roblox. Under the UK’s online safety laws, platforms must now take steps to keep kids safe, and we’re ensuring they meet their responsibilities. There’s more to do, but change is happening.»

What’s next for Roblox?

Experts CNET spoke with in areas including child privacy and safety, online marketing and tech viewed the steps Roblox is taking as positive, But there’s wide disagreement on whether the company is going far enough with its protections.

«Roblox’s new age-verification tools are encouraging, but from a parenting standpoint, they’re just one part of the safety puzzle,» said Dr. Scott Kollins, a clinical psychologist and chief medical officer at Aura, an online safety app. «The real question for families is whether these features meaningfully improve kids’ day-to-day experience on the platform. Age verification is a step forward, but children still need guardrails and clear explanations about how online interactions work.»

Kollins said that active parenting needs to take place before kids log on to Roblox in addition to the company designing its product with safety in mind.

Stephen Balkam, founder and CEO of the Family Online Safety Institute, called the age-verification «a hugely important step» in the direction of making Roblox a safer platform. He said he hoped other online platforms might follow Roblox. 

«My only hope is that in the long term, Roblox’s age assurance methods become interoperable with other gaming and kid-focused sites and platforms, so parents and kids only have to go through the verification process once,» Balkam said.

Like Kollins, Balkam emphasized the importance of parental involvement, since no site is entirely safe. 

«Set family rules, use parental controls and have regular conversations with your kids,» he said. «So, no, don’t ban Roblox, but use their industry-leading tools and keep the lines of communication open and your kids should be able to have a fun and creative time.»

Liability and trust

Some experts also view the changes as a way to mitigate the company’s reputational damage and address legal challenges.

The age verification is «not a silver bullet,» said Paromita Pain, associate professor of media studies at the University of Nevada, Reno.

«Even a very strong safety revamp doesn’t erase that record, but it does give Roblox a narrative: ‘We heard you, we’re now at or above industry standard, so future risk is sharply reduced,’ » Pain said. 

The moves, Pain said, could rebuild trust, but many parents will see age checks as coming too late. Pain said that the company should adopt independent audits of child-safety practices, make its parental and teen controls stricter by default and commit to «safety by design» by making systemwide changes on private servers and environment designs.

The current changes won’t fix things for Roblox, she said. «Only sustained, independently-verifiable changes—and probably some large settlements—will do that.»

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