Learn About Account Login Security

How to Build Passwords That Stand Up to Cracking Attempts

A strong password is your first line of defense against unauthorized access to your accounts. Understanding what makes a password difficult to crack helps you create one that protects your personal information more effectively. Password cracking tools use several techniques to break in, including brute force attacks (trying every combination) and dictionary attacks (using common words and variations). By creating passwords that are long, varied, and unpredictable, you make these methods far less effective.

The length of your password matters significantly. Security researchers consistently find that passwords with 12 or more characters are substantially harder to crack than shorter ones. A 12-character password using only lowercase letters would take a standard computer millions of times longer to crack than an 8-character password. This is because each additional character multiplies the number of possible combinations exponentially. While 8 characters was once considered acceptable, modern computing power makes longer passwords a practical necessity.

Mixing character types creates additional complexity that slows down cracking attempts. Passwords that combine uppercase letters, lowercase letters, numbers, and symbols are far more resistant to attack than those using only one or two character types. For example, a password like "BlueSky2024!" is stronger than "bluesky" or even "bluesky2024" because it includes capitals, lowercase, numbers, and a symbol. Each symbol option available significantly increases the total number of possible combinations a cracker must attempt.

Avoiding common patterns and predictable information is equally important. Passwords based on dictionary words, even with numbers added, can be cracked quickly because specialized tools test known words and common substitutions. Dates like birth years, anniversary dates, or "2024," are among the first things attackers try. Keyboard patterns such as "qwerty" or "123456" are also vulnerable. Names of family members, pet names, or usernames should be avoided because people familiar with you or your social media can guess these relatively easily.

Creating unique passwords for different accounts protects you if one account is compromised. Using the same password across multiple sites means that if hackers breach one website's database, they can attempt to use that password on your email, banking, or social media accounts. This is why security experts recommend varying your passwords. A password manager—software that stores and generates passwords—can make this practical rather than requiring you to memorize dozens of different passwords.

Practical Takeaway: Create passwords that are at least 12 characters long, include uppercase and lowercase letters plus numbers and symbols, avoid dictionary words and personal information, and use a different password for each important account. Consider using a password manager to generate and store strong passwords securely.

Understanding How Two-Factor Authentication Reduces Account Takeover Risk

Two-factor authentication (often called 2FA or two-step verification) adds a second verification step beyond your password when you log in. Even if someone obtains your password, they cannot access your account without passing the second authentication step. This requirement dramatically reduces the likelihood of unauthorized access because attackers typically target many accounts and move quickly—the extra step slows them down and often causes them to move on to easier targets.

Two-factor authentication works by confirming that you own the device or account associated with your login. Common forms include a text message (SMS) sent to your phone with a code you must enter, an authentication app like Google Authenticator or Microsoft Authenticator that generates time-based codes, a push notification that asks you to approve or deny the login attempt, or a security key—a physical device that plugs into your computer or connects via Bluetooth. Each method provides verification separate from your password.

Text message codes are widely supported but have a notable weakness: SIM swap attacks, where criminals trick your phone carrier into transferring your number to their device, allowing them to receive your SMS codes. Despite this vulnerability, SMS is still substantially more protective than a password alone. Authentication apps that generate codes are stronger because they're not transmitted through text and cannot be intercepted by SIM swaps. These apps generate a new code every 30 seconds, and you enter the current code when logging in. Codes expire quickly, typically within minutes, making them difficult to use even if intercepted.

Push notifications represent another strong option where your phone receives a request asking "Is this you?" and you tap to approve or deny. This method prevents attackers from logging in even if they have your password and phone number because they cannot approve the notification from their device. The notification goes to your actual phone, which you control. Security keys offer the strongest protection: physical devices about the size of a USB drive that use cryptographic verification. They cannot be phished or intercepted because they're designed to authenticate only with legitimate websites and services.

The best choice of 2FA method depends on what's available and your personal security needs. For most people, either an authentication app or push notifications provide strong protection balanced with reasonable convenience. Many services now allow you to use multiple 2FA methods as backups—for example, both an authentication app and a recovery code—so you're not locked out if you lose access to your primary method. Having a backup method matters because people sometimes lose phones or change carriers.

Practical Takeaway: Enable two-factor authentication on accounts that matter most: email, banking, social media, and work accounts. Start with authentication apps or push notifications as your primary 2FA method, and save recovery codes in a secure location as backup. Check whether your most important accounts offer multiple 2FA options so you can use the strongest available method.

Identifying Phishing Emails and Deceptive Websites Before They Trick You

Phishing is a technique where attackers impersonate trusted organizations—banks, email providers, social media platforms, payment services—through fake emails and websites designed to look legitimate. The goal is convincing you to enter your login credentials, credit card information, or other sensitive data directly into their fake form. Phishing remains highly effective because millions of emails are sent, and even if only a small percentage of recipients fall for the trick, attackers gain many compromised accounts. Learning to spot the red flags separates you from the victims.

Email-based phishing often contains subtle irregularities in language or urgent messaging that creates pressure to act. Legitimate companies typically address you by name and use formal, professional language. Phishing emails frequently use generic greetings like "Dear Customer" or "Dear User," contain awkward phrasing or grammar errors, or request unusual actions like urgently "confirming" your account details or "verifying" your information due to suspicious activity. The language often creates artificial urgency: "Your account has been temporarily locked" or "Unusual activity detected—verify your account now." These messages prey on anxiety to push you into reacting without thinking carefully.

The sender's email address requires careful attention. When you hover over or click the sender's name in many email clients, you see the actual email address. Phishers frequently use addresses that look similar to the real organization but contain subtle differences. For example, a phishing email might come from "support@amaz0n-account.com" instead of Amazon's actual domain, or "secure-paypal-update.com" instead of PayPal's real domain. Banks and legitimate companies never request passwords, credit card numbers, or Social Security numbers via email. If an email claims to be from your bank and asks for this information, it's phishing.

Links in emails hide their true destination. An email might display link text saying "Click here to access your account" while the actual link goes to a phishing website. To check a link's real destination without clicking, hover your mouse over it (on desktop) to see the URL in a tooltip, or use your email client's preview option if available. Legitimate companies typically link to their official websites with domains like "company.com" not "company-update.net" or "verify-company.com." Misspelled domains and substituted numbers (like "0" instead of "O") are common phishing tactics.

Deceptive websites visually imitate legitimate ones but contain giveaways. Check the address bar for the correct domain—phishing sites often use slightly different URLs. Look for the security indicator: a padlock icon and "https://" (the "s" indicates encrypted connection). While https indicates secure transmission, phishers can also use https, so it's not a complete guarantee of legitimacy. If you're suspicious about an email claiming to be from a company, do not click links in the email. Instead, open a new browser tab, navigate to the company's website directly by typing the address you know, and log in through that official site. If there's a real problem with your account, you'll typically see a security notice when you log in legitimately.