Technologies

Protect Yourself From Sketchy Calls: Unknown Caller vs. No Caller ID

Here’s the key difference between these two anonymous calls on iPhone.

Like most of us, you’re probably getting a lot of unsolicited calls that show up as either No Caller ID or Unknown Caller on your iPhone. Reflexively answering either one could lead to a scam — or perhaps a call you’ve been waiting for. What are the differences between these two anonymous labels?

Here’s what to know about each type of call and how to keep yourself safe from potential scams.

No Caller ID vs. Unknown Caller

A call labeled «No Caller ID» means the caller has blocked their number from appearing on your screen. In other words, they want to keep their identity under wraps. This can be a privacy measure, but it’s also a tool used by scammers — if you can’t quickly verify who the caller is based on their number, it can be easier to fall for their trap.

«Unknown Caller,» on the other hand, is the message that appears when your phone service provider doesn’t recognize who’s calling. This can come down to several factors, including network or technical issues, or receiving calls from foreign numbers. Oftentimes, these callers aren’t intentionally trying to hide their identity, but it’s still a good idea to be cautious. Scammers can also use this method to hide their identity by using a phone that isn’t registered with the phone company, for instance.

What to do if you get anonymous calls

You should always proceed with caution if you can’t identify a caller. This is especially important if someone rings you and «No Caller ID» appears on the screen, as they have intentionally kept their number hidden. But an Unknown Caller is also something to be wary of, since it becomes harder to truly identify who’s at the other end of the line.

Letting the call go to voicemail is often a good idea. Answering a call signals to scammers that your number is active, which could lead to more similar calls in the future. The Live Voicemail feature is particularly helpful for these situations because it allows you to pick up the call if the voicemail transcript indicates it’s someone you want to speak with.

Silence unknown callers on your iPhone

You can even go a step further and silence unknown callers on your iPhone. That way, those mystery callers won’t disturb you, and they can just leave a voicemail for you to check later.

In your iPhone, go to Settings, then tap Apps followed by Phone and go to Silence Unknown Callers. Hit the toggle to turn it on.

Use apps to block unidentified calls

Though there isn’t a way to block these anonymous calls within your iPhone’s settings, your wireless carrier may offer apps to help with this.

AT&T ActiveArmor, for instance, has a free version that blocks spam and fraud calls, and also lets you block all unknown callers. The advanced version, which costs $4 a month, includes tools like reverse number lookup and caller ID for unknown numbers. ActiveArmor is available for iOS and Android.

Verizon’s Call Filter app also offers spam detection, a spam filter and the option to report numbers, all for free. For an additional $4 a month, you’ll also get caller ID, spam lookup, a personal block list and a spam risk meter. Call Filter is automatically enabled for Android users on a postpaid plan, and is available in the App Store for iPhone.

T-Mobile’s Scam Shield has a free option that includes full caller ID, scam reporting and scam blocking. There’s also a premium option for $4 a month per line, which offers reverse phone number lookup and voicemail transcriptions that are automatically texted to you. You can download the Scam Shield app in the App Store or Google Play.

Be sure to check with other wireless carriers to see if they offer something similar. Some wireless carrier plans may include access to the premium features as well.

For more third-party apps to help limit robocalls and general tips, check out our guide on stopping spam calls.

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Technologies

Stroke Risk Could Be Flagged Early Using Apple Watch Technology, Studies Show

The latest research shows that wearables could soon be a vital part of tracking your heart health.

For millions at risk of stroke, a simple tap on the wrist could one day save lives. New studies from the Amsterdam University Medical Center and St. Bartholomew’s Hospital in London showed that wearables, such as the Apple Watch, can improve the detection of atrial fibrillation compared to standard care. Atrial fibrillation, often referred to as A-fib, is a heart arrhythmia, which means an irregular or abnormal heartbeat. The condition can cause blood clots and is one of the leading causes of a stroke.

The Amsterdam study enrolled 437 patients aged 65 or older with elevated stroke risk and required 219 of them to wear an Apple Watch to track their heart rate for 12 hours a day for 6 months. The remaining 218 patients didn’t wear a watch and relied on standard care.

The experiment detected heart arrhythmias four times more frequently in patients wearing an Apple Watch versus those who didn’t. Specific versions of the Apple Watch use photoplethysmography, a heart rate-detecting LED light sensor, and have a built-in single-lead electrocardiogram sensor to read your heart rate.

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Wearables that track heart rate and other health markers aren’t new, and previous studies have shown promise in detecting A-fib. Although wearables are known to track this type of data, no prior research has examined how well they detect potential health risks for A-fib.

«We saw that after six months we diagnosed and treated 21 patients in the group wearing the smartwatch, of whom 57% were asymptomatic,» said Michiel Winter, a cardiologist at Amsterdam UMC, in a statement. «This was against just five diagnoses in the group receiving standard care, all of whom experienced symptoms.»

The second clinical study, conducted by St. Bartholomew’s Hospital, showed that the Apple Watch could also be beneficial for detecting A-fib symptoms earlier and for monitoring patients after a standard treatment, such as a catheter ablation. The hospital found that patients could record clinical-grade ECGs on their Apple Watches at home when experiencing symptoms. Similar to the first study, the hospital found that patients using an Apple Watch detected A-fib earlier and more frequently than those receiving standard care. Catching symptoms earlier also reduces anxiousness and the likelihood that a patient will need to be hospitalized.

The findings from these studies show that wearables such as the Apple Watch could be used for long-term heart screening to detect heart health abnormalities and improve patient care for those in treatment. And it can help diagnose those who don’t know they have the condition.

«Using smartwatches with PPG and ECG functions aids doctors in diagnosing individuals unaware of their arrhythmia, thereby expediting the diagnostic process,» said Winter.

Technologies

Today’s NYT Mini Crossword Answers for Thursday, Jan. 29

Here are the answers for The New York Times Mini Crossword for Jan. 29.

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

Need some help with today’s Mini Crossword? It’s one of those neat, solid grids with no empty squares. Read on for all the answers. And if you could use some hints and guidance for daily solving, check out our Mini Crossword tips.

If you’re looking for today’s Wordle, Connections, Connections: Sports Edition and Strands answers, you can visit CNET’s NYT puzzle hints page.

Read more: Tips and Tricks for Solving The New York Times Mini Crossword

Let’s get to those Mini Crossword clues and answers.

Mini across clues and answers

1A clue: Employees, collectively
Answer: STAFF

6A clue: The «L» of TTYL
Answer: LATER

7A clue: Slowly lessen, as political support
Answer: ERODE

8A clue: Dunkin’ offering
Answer: DONUT

9A clue: Tricky things to navigate with a stroller
Answer: STEPS

Mini down clues and answers

1D clue: Toys that go on the decline in winter?
Answer: SLEDS

2D clue: Set of fortunetelling cards
Answer: TAROT

3D clue: Make amends
Answer: ATONE

4D clue: Out of patience
Answer: FEDUP

5D clue: Guitar bars
Answer: FRETS

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Technologies

Mobile Internet Without Borders: How Verum E-SIM Is Changing the Game for Travelers and Beyond

In an era when flights take just a few hours, but data boundaries remain very real, a solution has emerged that significantly simplifies life for frequent international travelers. The Verum E-SIM app offers a next-generation virtual SIM card — no plastic, no waiting for delivery, and no traditional roaming charges.

While eSIM technology itself is no longer new, Verum takes it further: the internet works in over 150 countries worldwide under clear, uniform conditions. Connection happens through the app in just a couple of minutes — choose a package (or even a global one), pay, and activate. No need to buy local SIM cards at the airport, hunt for carrier shops, or struggle with explanations in a foreign language.

One of the biggest advantages is the complete absence of hidden fees or billing surprises. Plans are fully transparent: you immediately see how many gigabytes you get and for how long. Speed and reliability are provided by partner operators in each specific country — this isn’t a single “averaged” provider for the entire world.

Another key point for many users is that no VPN is required. As long as your device is using Verum E-SIM traffic, all familiar services and websites open directly, without extra layers or speed loss.

For those traveling with a group or family, portable Wi-Fi routers with Verum eSIM support have become a great option. One profile — and the internet is shared simultaneously across multiple smartphones, tablets, and laptops. It’s convenient on the road, in a hotel, or even in a café where the local Wi-Fi is unreliable.

Payment flexibility is also a plus: the service supports regular bank cards, cryptocurrencies, and various alternative methods — so you can choose whatever feels most convenient and cost-effective for you.

In the end, Verum E-SIM is more than just another data app. It’s a way to make mobile internet as natural and hassle-free abroad as it is at home. The difference becomes especially clear when you compare a roaming bill from one of the major operators with your Verum expenses after two or three trips.

The technology is still gaining popularity, but many travelers are already saying: “For the first time in ages, internet abroad stopped being a source of stress.” Solutions like this are shaping the future of mobile connectivity — without extra cables, borders, or unpleasant surprises.

If you travel often or simply value stable internet without unnecessary hassle — it’s worth giving it a try at least once.

https://esim.verum.im

https://esimglobal.world