Aug 22, 2016  In Mac, if you already installed an anti-virus then this the best thing you've done to secure notebook. To find out if your mac address has been hacked. You can easily check it out by scanning your Mac. Usually, Mac users have to scan its system regularly to know if check anything usual such as the trojan virus.

About one and a half week ago, I was looking on a site generated by a community (that was known to have successfully hacked another community they hated) with Chrome, then suddenly a popup window came out of nowhere and closed itself like 0.3 second later. I couldn't see which link it was from.

In the following few days, my mac has experienced the following:

1) turned on itself after I switched it off in the morning.

2) turned off itself when I did not.

3) when I tried to check my 'Sharing' settings, it always lags for more than just minutes, forcing me to quit it using cmd+alt+escape. But then after I few attempts of opening Sharing settings again, it stopped lagging, and no sharing setting was checked at all.

4) mail app opens itself when I am certain I did not click on it and I did not see it moving up and down on the Dock

5) I had an unpaused youtube video on Chrome. I pushed the lid down completely for a number of minutes. Then I heard the youtube video starts playing itself even with the lid completely down. And this happened to me for the first time ever.

I have already scanned my entire mac with Sophos. I dragged everything in my 'Machintosh HD', which included folders of 'Applications', 'Library', 'System' & 'Users', and also a single shortcut file called 'User Information' to scan. Sophos found nothing at all. My mac is running the newest system version i.e. El Captain version. 10.11.6

All these suspicious things happened in a number of days after that popup and it just led me to think my mac is hacked, but not via 'sharing' or 'malware' (because I have not even downloaded anything from that quick popup. Unless malware can be installed via quick popup without me clicking on anything, but I am not a hacker and I dont know about java script hacks so I would not know.). Perhaps they hacked it via router settings? I just really dont know how advanced they can get. I have been researching on the internet/ forums/ youtube videos, but the more I am connected to the internet instead of just keeping my mac shut, the more time the hacker has to look through my. files.

Please. Help. Really. Ive done everything I can. Dont patronize Apple by saying 'mac doesnt get hacked easily because it is safe/unlikely/few market/'.

MacBook Pro (Retina, 13-inch,Early 2015), OS X El Capitan (10.11.6)

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An increasing number of users are experiencing issues with Safari. Specifically, a pop-up alert window appears saying that their Mac may have been hijacked or that there is a “suspicious activity” or that their Mac is infected with a virus.

See also: Phishing for Apple ID Accounts: Scam Emails and Texts.

You may see a popup message something like this:

Critical Security Warning! Your Mac is infected with a malicious virus attack. Please contact tech support at +1-888-307-2735 and provide error code WBACK7917 to scan and resolve any potential threats to your personal and financial information, which was being tracked by suspicious connection. Consequently, we are performing additional security checks to verify the source of the attack and have halted all your system resources in order to prevent any additional damage to your system and information.”

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This is a scam message targeting Mac users. Safari (Explorer, Firefox, Edge, or Chrome) will look unresponsive and locked and you will not be able to close the popup.

This is a common method that scammers use to scare people. In fact, they are a lot of different methods to steal your money, personal information, or even identity.

This is just a JavaScript pop-up. Just keep calm. Do not worry, this is not a virus. And further, your Mac has not been infected with any malware. This message is designed to scare and deceive Mac users into thinking there is something wrong.

Do not call the number on the message. And do not click the “OK” button. If you call the number, whoever answers the phone will ask you to access your Mac remotely. Or they may ask you to pay between $100 and $500. Do not do this. They are trying to steal your money. And do not share your personal information.

The popup also has a phone number. The number does not belong to Apple. If you need to contact Apple, contact only via its official number or website.

If you worry about viruses, you can prevent viruses and other malware on your Mac. You can make your Mac more secure.

There is another similar phishing scam: Mac: Your System Is Infected With (3) Viruses.

Here is how to fix security alert messages:

Follow the steps below:

• Force quit Safari by pressing Command-Option-Esc. Or click the Apple menu and select Force Quit.
• Force Quit window will appear.
• Select Safari.
• Then click Force Quit.
• Now you need to restart Safari. But if you start Safari normally, the popup may appear. Now while pressing the Shift key, launch Safari. This is an important step. This will restart the browser without reloading previously open sessions.

If you are still experiencing this problem:

• Force quit Safari.
• Relaunch Safari while holding down the Shift key.
• Turn Wi-Fi off. Simply click the wireless icon in the upper left corner then choose Turn Wi-Fi Off.
• Visit a web site e.g. apple.com.
• Now connect to the Internet by turning Wi-Fi on.

Note: You may also want to clear your browser history. Choose History > Clear History. You may also want to clear your cache.

Mac Laptop Screensaver Showed Up Hacked Games

See also: Mac Stuck On “Setting up your Mac”, Fix