Tips on how can you avoid Phishing Attacks .

On your path to improving your digital security, you may encounter bad actors who attempt to undermine your security goals. We call these bad actors adversaries, or attackers. When an attacker sends an email or link that looks innocent, but is actually malicious it’s called phishing.

A phishing attack usually comes in the form of a message meant to convince you to:

    click on a link;
    open a document;
    install software on your device; or
    enter your username and password into a website that’s made to look legitimate.

Phishing attacks can trick you into giving up your passwords or trick you into installing malware on your device. Attackers can use malware to remotely control your device, steal information, or spy on you.

This guide will help you to identify phishing attacks when you see them and outline some practical ways to help defend against them.

Types of Phishing Attacks :-

Phishing for Passwords (aka Credential Harvesting)

Phishers can trick you into giving them your passwords by sending you a deceptive link. Web addresses in a message may appear to have one destination, but lead to another. On your computer, you can usually see the destination URL by hovering over the link. But links can be further disguised with lookalike letters, or by using domain names that are one letter off from legitimate domain names and may direct you to a webpage that appears to go to a service that you use, such as Gmail or Dropbox. These fake replica login screens often look so legitimate that it’s tempting to type your username and password. If you do, you will send your login credentials to the attackers.

So before typing any passwords, look at the address bar of your web browser. It will show the real domain name of the page. If it doesn't match the site you think you’re logging into, don't continue! Remember that seeing a corporate logo on the page doesn't confirm it's real. Anybody can copy a logo or design onto their own page to try and trick you.

Remember, it's easy to forge emails so that they display a false return address. This means that checking the apparent email address of the sender isn't enough to confirm that an email was really sent by the person it appears to be from.

Spearphishing

Most phishing attacks cast a wide net. An attacker might send emails to hundreds or thousands of people claiming to have an exciting video, important document, or billing dispute.

But sometimes phishing attacks are targeted based on something the attacker already knows about an individual. This is called “spearphishing.” Imagine you receive an email from your Uncle Boris that says it contains pictures of his kids. Since Boris actually has kids and it looks like it is from his address, you open it. When you open the email, there is a PDF document attached to it. When you open the PDF, it may even display pictures of Boris’ kids, but it also quietly installs malware on your device that can be used to spy on you. Uncle Boris didn't send that email, but someone who knows you have an Uncle Boris (and that he has children) did. The PDF document that you clicked on started up your PDF reader, but took advantage of a bug in that software to run its own code. In addition to showing you a PDF, it also downloaded malware onto your computer. That malware could retrieve your contacts and record what your device's camera and microphone sees and hears.

The best way to protect yourself from phishing attacks is to never click on any links or open any attachments. But this advice is unrealistic for most people. Below are some practical ways to defend against phishing.

How to Help Defend Against A Phishing Attack 

Keep your software updated

Phishing attacks that use malware often rely on software bugs in order to get the malware onto your machine. Usually once a bug becomes known, a software manufacturer will release an update to fix it. This means that older software has more publicly-known bugs that could be used to help install malware. Keeping your software up to date reduces malware risks.

Use a password manager with auto-fill

Password managers that auto-fill passwords keep track of which sites those passwords belong to. While it’s easy for a human to be tricked by fake login pages, password managers are not tricked in the same way. If you use a password manager (including the built-in password manager in your browser), and it refuses to auto-fill a password, you should hesitate and double check the site you’re on. Better yet, use randomly generated passwords so that you are forced to rely on auto-fill, and less likely to type your password into a fake login page.

Verify Emails with Senders

One way to determine if an email is a phishing attack is to check via a different channel with the person who supposedly sent it. If the email was purportedly sent from your bank, don’t click on links in the email. Instead, call your bank or open your browser and type in the URL of your bank's website. Likewise, if your Uncle Boris sends you an email attachment, call him on the phone and ask if he sent you pictures of his kids before opening it.

Open Suspicious Documents in Google Drive

Some people expect to receive attachments from unknown persons. For example, journalists commonly receive documents from sources. But it can be difficult to verify that a Word document, Excel spreadsheet, or PDF file isn't malicious.

In these cases, don't double-click the downloaded file. Instead, upload it to Google Drive or another online document reader. This will turn the document into an image or HTML, which almost certainly will prevent it from installing malware on your device. If you're comfortable with learning new software and willing to spend time setting up a new environment for reading mail or foreign documents, there are dedicated operating systems designed to limit the effect of malware. TAILS is a Linux-based operating system that deletes itself after you use it. Qubes is another Linux-based system that carefully separates applications so that they cannot interfere with each other, limiting the effect of any malware. Both are designed to work on laptop or desktop computers.

You can also submit untrusted links and files to VirusTotal, an online service that checks files and links against several different antivirus engines and reports the results. This isn't foolproof—antivirus often fails to detect new malware or targeted attacks—but it is better than nothing.

Be Careful of Emailed Instructions

Some phishing emails claim to be from a computer support department or technology company and ask you to reply with your passwords, or to allow a “computer repair person” remote access to your computer, or to disable some security feature on your device. The email might give a purported explanation of why this is necessary, by claiming, for example, that your email box is full or that your computer has been hacked. Unfortunately, obeying these fraudulent instructions can be bad for your security. Be especially careful before giving anyone technical data or following technical instructions unless you can be absolutely certain that the request's source is genuine.

If you are at all suspicious of an email or link someone has sent you, don’t open or click on it until you’ve mitigated the situation with the above tips and can be confident it’s not malicious.

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