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How to Stop Spam Text Messages

by on March 18, 2022
in Tips & How-Tos, Phones and Mobile, Mobile Apps, Privacy :: 5 comments

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Spam texts in the form of donation requests, sales notifications, marketing notices, and scams, among others, have been on the rise. Last year, Americans received more than 87.8 billion spam text messages, a 52 percent increase over 2020, according to a report by spam call and text app RoboKiller.

Scam texts can be especially problematic. For instance, earlier this week, I received a text message from a scammer posing as Citi-Debit urging me to click on a link for a “Mandatory (20) Assessment.” Clicking on the link took you to a phishing page set up to steal your banking credentials. It was pretty easy to spot since I don’t have a Citibank debit card and I know what to look for, but others may not have been as fortunate.

Spam text on iPhone purportedly from Citi-Debit urging me to click on a link for a Mandatory (20) Assessment.

Occasionally, scammers will get lucky and tap into something that's happening in your life that makes the message seem real. For instance, my mother-in-law was renewing her driver license and got a text message asking her to confirm her information. But that text was another phishing scam, and she ended up submitting everything from her driver's license info and her social security number. If she hadn’t been in the process of renewing her license, she wouldn’t have been taken in by the scam. Instead, she had to take proactively take numerous steps to prevent her identity from being stolen. So always be skeptical

While it’s nearly impossible to stop spam text messages entirely, there are preventative measures you can take to reduce the number of unwanted texts you receive. Here are five things I recommend you do.

1. Don’t respond to spam texts

All that responding to a spam text does is confirm that your number is valid. Once spammers have your validated number, they can resell it and you’ll end up receiving more text messages.

2. Don’t open links in texts unless you're 100% certain of the sender

When you click on a link, you run the risk of both installing malware on your phone or being taken to a phishing site which will try to harvest your logins or personal information. If you're not 100% sure of the sender, don't click. There's almost always another way of addressing the subject of a legitimate text than clicking through.

3. Report spam text messages

To help stop spammers and scammers, you can report spam/scam messages to your carrier. Forward the text message to SPAM (7726). [Check out our stories on how to forward a text message on an iPhone and how to forward a text message on an Android phone.] Your carrier will reply with a text asking you to send the spammer’s/scammer’s number because that info isn't sent with a forwarded text.

You can also report scam texts to the FTC. If they get enough reports, they may investigate and pursue the biggest offenders.

4. Turn on spam text filtering

Android phones have spam filtering built into the operating system. You just need to turn it on by opening Settings > Spam protection > Enable spam protection.

iPhones don’t have a spam filter, per se. However, you can choose to filter out messages from “Unknown Senders” from your “Known Senders” messages list and have them appear in a second tab entitled “Unknown Senders.” Go to Settings > Messages and toggle on “Filter Unknown Senders.” However, you’ll find that messages from delivery services, doctor’s offices, and other companies are categorized as “Unknown Senders,” making the feature somewhat unhelpful.

For third-party text blocking apps, I haven't seen studies that show that they are better than Google's free spam protection, though you can block texts that have specific key words with RoboKiller ($4.99 per month or $39.99 per year). Likewise, the iPhone apps will place suspected spam texts into the "Unknown Senders" tab and you can block text with key words using TextKiller ($4.99 per month and $39.99 per year). If you wan to try a free third-party app, which doesn't have keyword blocking, I recommend TrueCaller, which we also recommend for call blocking.

5. Don’t give out your "real" number

You risk your number being stolen or sold whenever you share it to sign up for text notifications or enroll in a store loyalty program, giveaway, app, or service. If you need to give out a number, use a virtual phone line or burner number to keep your phone number private.

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For the past 20+ years, Techlicious founder Suzanne Kantra has been exploring and writing about the world’s most exciting and important science and technology issues. Prior to Techlicious, Suzanne was the Technology Editor for Martha Stewart Living Omnimedia and the Senior Technology Editor for Popular Science. Suzanne has been featured on CNN, CBS, and NBC.

Discussion loading

I block Spammer's number - Yes, from text

From Linda A on March 21, 2022 :: 12:27 pm

On iPhone, when you open a text, there’s a > to the right of the number from which the text was sent.  I tap that > and reach a screen that shows the phone number and options to call, video, email, and INFO. Tapping INFO then takes me to a screen where I can block that caller’s number.  Goodbye future texts from same number.


Unfortunately, that's not very effective

From Josh Kirschner on March 21, 2022 :: 2:08 pm

Spammers rarely use the same number more than once, so blocking individual numbers won’t do much to block future spam calls.


I DID say

From Linda A on March 21, 2022 :: 3:58 pm

I did say the same number, and I’m aware they just keep cloning them - but, hey, why make it easy on them; let them work a bit for their chicanery.


android spam protection?

From Micki on March 23, 2022 :: 8:25 pm

Is spam protection for texts something in only the “newer” Android phones?  I have a Samsung 8+ and I can’t find those terms anywhere in my settings.


I have a Samsung S21

From DAVID on March 24, 2022 :: 11:34 am

I have a Samsung S21 Ultra and I don’t find it either.


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