How to Identify Phishing Emails and Protect Your PC

Phishing emails are designed to look legitimate enough that you'll hand over credentials, click a malicious link, or open an infected attachment. It works often enough to remain one of the most common cyberattack methods: nearly 45% of global email traffic was spam or malicious in 2025, and business email compromise alone cost U.S. organizations over $3 billion in reported losses that year. Knowing the handful of patterns phishing emails share makes them far easier to catch before they cause damage.

What Is Phishing?

Phishing works a lot like fishing with bait: cybercriminals cast a convincing-looking email and wait for someone to bite. What makes it effective is the appearance of legitimacy. At its core, phishing means sending an email that poses as a trusted source in order to distribute a malicious link or attachment. Through it, an attacker can:

• Steal your usernames and passwords
• Sell your information to other parties
• Open credit cards or bank accounts in your name
• Gain access to your Social Security number
• Damage your credit score
• Steal money directly or obtain cash advances in your name

Common Phishing Attack Methods

Cybercriminals use a handful of recurring tactics. Recognizing which one you're looking at helps you understand how much trouble a single click could cause.

Spear phishing

Spear phishing uses a target's personal details, like their name, employer, job title, or phone number, to build a false sense of familiarity. Social platforms like Facebook® and LinkedIn® are common sources for this information, which is why it's worth being cautious about quizzes or posts that ask for details like your age or a pet's name. These emails often reference real coworkers or locations to seem more convincing.

Whaling (business email compromise)

Whaling is spear phishing aimed specifically at senior executives, typically to gain the credentials needed to authorize large payments. Also known as business email compromise (BEC), this is one of the costliest forms of cybercrime: the FBI's Internet Crime Complaint Center logged over 24,000 BEC complaints in 2025, with more than $3 billion in reported losses, making it the second-most financially damaging cybercrime category that year behind investment fraud.

Pharming

Pharming redirects users from a legitimate website to a fraudulent one, typically through DNS cache poisoning, meaning you can type the correct URL and still land on a fake site. Any information entered there, including card numbers, bank details, or passwords, goes straight to the attacker.

File-sharing phishing

Services like Google Drive™, Dropbox®, and DocuSign® are widely used for storing and signing documents, which makes them frequent phishing targets. Attackers build convincing fake login pages, sometimes hosted on domains that look nearly identical to the real service, to harvest credentials.

SMS phishing (smishing)

Smishing delivers a malicious link by text instead of email, often leading to a malicious app that can track keystrokes, steal personal data, or hold files for ransom. If you receive a suspicious text, forwarding it to 7726 (SPAM) helps your carrier investigate; see our guide on how to stop robocalls for more on filtering unwanted calls and texts generally.

How Phishing Can Affect Your Computer

Beyond stealing personal and financial data, a successful phishing attack can infect your PC with malware. Ransomware, spyware, trojans, and viruses are among the most common payloads, and any of them can degrade your computer's performance or functionality, or turn it into a launch point for further attacks.

Your device could also be pulled into a botnet: a network of infected devices controlled by an attacker and used to carry out larger denial-of-service, spam, or fraud campaigns, often without the owner noticing anything is wrong.

How to Identify a Phishing Email

Phishing emails share a small set of recurring traits. Two of the most common, a false sense of urgency and a request to confirm personal credentials, are covered in more depth in How to Tell if Someone Is Scamming You Online; the three below are specifically useful for spotting phishing in your inbox.

The email address looks slightly off

Most email providers filter obvious spam, but convincing fakes still get through. A common trick is registering an address just one character off from a real one, like swapping a lowercase "l" for a capital "I" or adding an extra letter to a familiar domain. At a glance these look legitimate; on closer inspection, something's usually off.

There's an unexpected attachment

An email from an unfamiliar sender with an attachment is worth treating with suspicion by default, since it's a common way to deliver malware. If you believe the email might be genuine, a security scan before opening the attachment is a reasonable extra step.

There are spelling or grammatical errors

Legitimate organizations generally proofread their communications carefully. Awkward phrasing, unusual word choice, or frequent typos in an email claiming to be from a bank or major company is a solid sign it isn't.

The Bottom Line

Learning to spot these patterns is the simplest way to defend against phishing, and it takes far less effort than recovering from a successful attack. For devices with built-in protection against malicious links and attachments, browse HP laptops with built-in threat protection.