"Your system is infected with (3) Viruses” when opening a Safari tab

 If running iOS 13 or earlier versions, check: Settings - Passwords & Accounts - Accounts - Any rogue entries here? If so, delete the rogue account. 

If running iOS 14, check: Settings - Calendar - Accounts - Any rogue entries here? If so, delete the rogue account. 

Remove spam from Calendar on your iPhone

 If running iOS 13 or earlier versions, check: Settings - Passwords & Accounts - Accounts - Any rogue entries here? If so, delete the rogue account. 

If running iOS 14, check: Settings - Calendar - Accounts - Any rogue entries here? If so, delete the rogue account. 

Remove spam from Calendar on your iPhone

Sam112Moore wrote:

protecting phone at virus attacks

In current usage, "virus" means "something different happened, and that I don't understand".

"Malware" is used to refer to all sorts of junk, as—in years past—"virus" had a specific meaning.

As for iPhone and viruses, or iPhone and malware, most folks get socially-engineered—fooled out of their credentials, or otherwise scammed.

Malware on the iPhone is pretty rare.

There's lots of adware around, and some apps and some websites have rotten privacy practices.

What to do? Patch your iPhone to current and keep current, don't share your passwords with others and don't re-use your passwords across different services, and don't jailbreak your iPhone.

Here's some info from Apple: Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

Phishing and password re-use and down-revision apps and iOS software are bigger problems in recent times. Viruses, not so much.

godfreedme wrote:

I have this same problem. this is my first MacBook so I'm not sure if this is normal. I don't think I visited any shady sites.

If you’re connected to the internet, you can and will see scam ads, scam postings, scam email.

Even on so-called “reputable” websites, the ad networks integrated into those websites routinely serve scam ads. Ad networks can and variously do load dreck. And ad networks can and have been compromised, and will try to load yet worse dreck.

More than a little of the email we receive is scams. Sending email addresses are routinely spoofed / faked / forged.

More than a few telephone calls are scams. And calling numbers are routinely spoofed / faked / forged/

And if the “entrepreneurs” that posted whatever text you’re reading here could actually have scanned your system for malware—scans are seriously intrusive—they’d just upload all your data and your contacts and be done with it. Remote websites cannot scan your computer or your phone. That’d be a massive security vulnerability.

it’s easier to hack people than computers, too. You and I. Not our computers. Not our phones. Us. Here are some of the many ways we ourselves—not our phones and not our computers—get hacked:

Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

Desiree888 wrote:

How to get ride of virus

If your web browser displays annoying pop-ups 

While browsing the web, if you see a pop-up or alert that offers you a free prize or warns you about a problem with your device, don't believe it. These types of pop-ups are usually fraudulent advertisements, designed to trick you into giving the scammer personal information or money.

Don't call the number or follow the links to claim the prize or fix the problem. Ignore the message and simply navigate away from the page or close the entire window or tab.

Click on the following blue text for more of the ways that scammers try to trick all of us:

Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

ashely123_ wrote:

I got a virus, so can you take it off? Because I don’t know how it got there

There's almost certainly no virus—those are very rare on iPhone and iPad. You got lied to.

Click on the following blue text and read the linked article:

Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

Popups and remote websites cannot scan your Mac. Any claimed "virus scan" is a lie.

The ability to rummage deep into an iPhone or iPad file system would be a security catastrophe.

Allowing that remote access—deep enough to run a malware scan—would mean the perpetrators could just upload your data.

And further, iPhone and iPad prevent apps from poking around outside the app itself; apps cannot scan other apps.

The popups can lie about this, though. And do.

Which—46 pages into this thread—clearly works really well for getting folks to install the junk and malware. Which is the goal. They can't install the junk. But you can. So the authors of the pop-ups try to convince you to do things against your interests.

Luis@memphis wrote:

I git exactly the same, it would not let me do what I was doing, the same pops came over and over, i think i actually pressed on one of their invites snd took me to app store to buy a malware detector and eliminator,

i still cannot go past to do what I wanted, these pops keep appearing

Quit Safari. Close an app on your iPhone or iPod touch - Apple Support

Then Settings > Safari > Advanced > Website Data > Remove All Website Data

(You’ll have to log into a few websites again, including this Apple website.)

Restart Safari.

Clear your caches and quit and restart Safari as was mentioned, then check with the website maintainers.

Quit Safari. Close an app on your iPhone or iPod touch - Apple Support

Then Settings > Safari > Advanced > Website Data > Remove All Website Data

(You’ll have to log into a few websites again, including this Apple website.)

It's possible you've installed some problematic software, which can include add-on "security" and "VPN" apps, among others. If there's any of that around, remove it and try again. And that activation URL is not working here, either.

gunbileg112 wrote:

Hello! I have a vires in my phone I don’t no if it’s going to hurt my phone and can you get rid of the vires pleas

Hello, website pop-ups telling you your iPhone or iPad or Mac is infected? No you don’t have viruses, those dratted scammers lied to you you and you’re fine and your phone is fine and have a nice day and get on with the rest of your life and don’t believe everything you read on the Internet!

Or skim the previous 46 pages telling each of you reporting this the same thing.

No website can even scan your phone, as that’d be a security disaster. If the “virus-scanning” website could do that—they can’t rummage the depths of your iPhone storage—the scammers would just upload all your data and photos and the rest and be done with their skullduggery.

So they try to fool you into doing something... Bad. Bad for you. God for them.

Here are some other common scams:

Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

About Gift Card Scams - Official Apple Support

The All Too Common SAD Reality of Buying a used iPad/iPhone - Apple Community

Candyman73 wrote:

I keep receiving a pop-up alert from my calendar indicating my phone is infected

This is a different issue than the rest of this thread.

Same general idea though, with a different way of lying to you.

Your iPhone is fine.

In this case, you’ve subscribed to a spammer’s calendar.

The spammer’s calendar is filled with spam notifications for spam events

You’ll want to remove the local subscription to the spammer’s calendar.

Here’s how to remove an unwanted calendar subscription:

Remove spam from Calendar on your iPhone - Apple Support

Sam112Moore wrote:

i Can't delete virus

If this is the “you have (random number) of viruses!” message from this thread...

You can’t delete something which does not exist.

You cannot delete what is a lie.

You have nothing to delete.

There is no “virus”.

Scam Pop-ups, Scam Viruses, Scam Receipts… - Apple Community

godfreedme wrote:

Why are you saying it is a lie?

Because a remote web site has no means to scan an iPad, iPhone, Mac, or Windows client.

None.

A remote host cannot scan an iPad, iPhone, Mac, or Windows system.

Allowing a remote website the degree of intrusive storage access required for a malware scan would be a security catastrophe.

Consider what would happen if miscreants did have complete remote access necessary for that malware "scan". They'd just steal all your data, passwords, everything. Directly. But they're blocked from that access.

Blocked first by the web browser. Web browsers don't allow remote website arbitrary access to your local storage.

On iPad and iPhone, these website "scans" are further blocked by iPadOS and iOS software, as even locally-installed App Store apps do not have complete access to your device contents, and these locally-installed apps cannot scan your storage for locally-installed malware.

Miscreants can and will lie, cheat, and scam regardless of course, seeking profit and power from the ignorant and the unwary.

Those seeking profit from ignorance, gullibility, greed, and other such has a long history within humankind, of course.

Click on the following blue-text link for more information: Scam Pop-ups, Scam Viruses, Scam Receipts… - Apple Community

Retrop5 wrote:

I received this message today - (3) Viruses have detected on your iPhone and battery has been infected and damaged. If you do not remove this malware now, it may cause more damage to your device, How to fix this:

Some reading at the following link: Scam Pop-ups, Scam Viruses, Scam Receipts… - Apple Community

Surprised they don't suggest screen mange and display burn-through and electronic fleas to go with that battery infection. They should offer a special salve for the itching, too.

The scammers will continue to make and test changes to their messages of course, seeking to convince more folks to perform whatever activities the scammers might seek of them.

katheryne227 wrote:

I got a pop up saying that my device is damaged my 75% percent? Some one help?

Scammers lie. Spammers lie. Spam phone calls lie.

Welcome to unregulated capitalism, and to modern advertising.

Ignore it.

Panic-inducing lies do work as advertisements, of course. Viruses! Battery failures! Infected! Account locked! infected! Sketchy-app-or-service-purchase in far-away-place! We-have-your-old-password (from some server breach)!

A remote website cannot scan your iPhone or iPad or Mac battery capacity or battery health, nor can a remote website scan your iPhone or iPad or Mac for malware, etc.

Scam Pop-ups, Scam Viruses, Scam Receipts… - Apple Community

If you want to check your battery health on your iPhone, check Settings > Battery.

Ryballer12 wrote:

Need to get rid of virus

Congratulations, it’s GONE! Amazing, isn’t it? Just gone! Gone like the “virus” never even was. Gone like a when a lie proves to be a lie, and when a scam proves to be a scam, and when an unwary user learns not to trust what an advertiser claims.

Click on the following blue text link, and read some of the many scams: Scam Pop-ups, Scam Viruses, Scam Receipts… - Apple Community

And again, websites cannot scan your device. Were that catastrophe even possible, the scammers would just steal everything directly themselves, data and passwords and all, and not bother showing a pop-up ad.