Phishing (pronounced: fishing) is an attack that attempts to steal your money, or your identity, by getting you to reveal personal information -- such as credit card numbers, bank information, or passwords -- on websites that pretend to be legitimate. Cybercriminals typically pretend to be reputable companies, friends, or acquaintances in a fake message, which contains a link to a phishing website.

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Phishing is a popular form of cybercrime because of how effective it is. Cybercriminals have been successful using emails, text messages, and direct messages on social media or in video games, to get people to respond with their personal information. The best defense is awareness and knowing what to look for.

Here are some ways to recognize a phishing email:

  • Urgent call to action or threats - Be suspicious of emails and Teams messages that claim you must click, call, or open an attachment immediately. Often, they'll claim you have to act now to claim a reward or avoid a penalty. Creating a false sense of urgency is a common trick of phishing attacks and scams. They do that so that you won't think about it too much or consult with a trusted advisor who may warn you.

    Tip: Whenever you see a message calling for immediate action take a moment, pause, and look carefully at the message. Are you sure it's real? Slow down and be safe.

  • First time, infrequent senders, or senders marked [External] - While it's not unusual to receive an email or Teams message from someone for the first time, especially if they are outside your organization, this can be a sign of phishing. Slow down and take extra care at these times. When you get an email or a Teams message from somebody you don't recognize, or that Outlook or Teams identifies as a new sender, take a moment to examine it extra carefully using some of the measures below.

  • Spelling and bad grammar - Professional companies and organizations usually have an editorial and writing staff to make sure customers get high-quality, professional content. If an email message has obvious spelling or grammatical errors, it might be a scam. These errors are sometimes the result of awkward translation from a foreign language, and sometimes they're deliberate in an attempt to evade filters that try to block these attacks.

  • Generic greetings - An organization that works with you should know your name and these days it's easy to personalize an email. If the email starts with a generic "Dear sir or madam" that's a warning sign that it might not really be your bank or shopping site.

  • Mismatched email domains - If the email claims to be from a reputable company, like Microsoft or your bank, but the email is being sent from another email domain like Gmail.com, or microsoftsupport.ru it's probably a scam. Also be watchful for very subtle misspellings of the legitimate domain name. Like micros0ft.com where the second "o" has been replaced by a 0, or rnicrosoft.com, where the "m" has been replaced by an "r" and a "n". These are common tricks of scammers. 

  • Suspicious links or unexpected attachments - If you suspect that an email message, or a message in Teams is a scam, don't open any links or attachments that you see. Instead, hover your mouse over, but don't click the link. Look at the address that pops up when you hover over the link. Ask yourself if that address matches the link that was typed in the message. In the following example, resting the mouse over the link reveals the real web address in the box with the yellow background. The string of numbers looks nothing like the company's web address.

    Fake IP address

    Tip: On Android long-press the link to get a properties page that will reveal the true destination of the link. On iOS do what Apple calls a "Light, long-press".

Cybercriminals can also tempt you to visit fake websites with other methods, such as text messages or phone calls. If you're feeling threatened or being pressured, it may be time to hang up, find the phone number of the establishment and call back when your head is clear. Sophisticated cybercriminals set up call centers to automatically dial or text numbers for potential targets. These messages will often include prompts to get you to enter a PIN number or some other type of personal information.

For more information see How to spot a "fake order" scam. 

Are you an administrator or IT pro?

If so, you should be aware that phishing attempts may be targeting your Teams users. Take action. Learn more about what to do about it here.

If you have a Microsoft 365 subscription with Advanced Threat Protection you can enable ATP Anti-phishing to help protect your users. Learn more

  • Never click any links or attachments in suspicious emails or Teams messages. If you receive a suspicious message from an organization and worry the message could be legitimate, go to your web browser and open a new tab. Then go to the organization's website from your own saved favorite, or via a web search. Talk to them using official numbers or emails from their site. Call the organization using a phone number listed on the back of a membership card, printed on a bill or statement, or that you find on the organization's official website.

  • If the suspicious message appears to come from a person you know, contact that person via another means like by text message or a phone call to confirm it.

  • Report the message (see below).

  • Delete it.

  • Microsoft 365 Outlook - With the suspicious message selected, choose Report message from the ribbon, and then select Phishing. This is the fastest way to report it and remove the message from your Inbox, and it will help us improve our filters so that you see fewer of these messages in the future. For more information see Use the Report Message add-in.

  • Outlook.com - Select the check box next to the suspicious message in your Outlook.com inbox. Select the arrow next to Junk, and then select Phishing.

  • Teams messages - If you're in Microsoft Teams, hover over the malicious message withoutselecting it, and then select More options > More actions > Report this message. When asked to 'Report this message' choose the option Security risk - Spam, phishing, malicious content is selected, and then select Report. Click the Report button. If you are seeing signs of a scam, and are suspicious of a message, you, everyone else exposed to it, are better safe than sorry! Report it.

Note: If you're using an email client other than Outlook, start a new email to phish@office365.microsoft.com and include the phishing email as an attachment. Please don't forward the suspicious email; we need to receive it as an attachment so we can examine the headers on the message. 

If you’re on a suspicious website:

While you’re on a suspicious site in Microsoft Edge, select the Settings and More (…) icon towards the top right corner of the window, then Help and feedback > Report unsafe site.  Or click here.

Tip: ALT+F will open the Settings and More menu.

For more information see Securely browse the web in Microsoft Edge.

If you're suspicious that you may have inadvertently fallen for a phishing attack there are a few things you should do. 

  1. While it's fresh in your mind write down as many details of the attack as you can recall. In particular try to note any information such as usernames, account numbers, or passwords you may have shared, and where the attack happened such as in Teams, or Outlook.

  2. Immediately change the passwords on all affected accounts, and anywhere else that you might use the same password. While you're changing passwords you should create unique passwords for each account, and you might want to see Create and use strong passwords.

  3. Confirm that you have multifactor authentication (also known as two-step verification) turned on for every account you can. See What is: Multifactor authentication

  4. If this attack affects your work or school accounts, you should notify the IT support folks at your work or school of the possible attack. If you shared information about your credit cards or bank accounts, you may want to contact those companies as well to alert them to possible fraud.

  5. If you've lost money, or been the victim of identity theft, don't hesitate, report it to local law enforcement. The details in step 1 will be very helpful to them.

See also

The keys to the kingdom - securing your devices and accounts

How malware can infect your computer

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