Protect Your Work Account: Stop Account Takeover Attempts

Your work account is worth more than you think. Not just to you, but to attackers who want to use it as a gateway into your organization. Between November 2024 and November 2025, Proofpoint found that 99% of the organizations it monitors were targeted by account takeover attempts, and 67% had at least one account taken over. The question isn’t whether someone will try to access your account. It’s whether you’re ready to stop them.

What Happens When Your Account Gets Compromised

Account takeover means someone else gains access to your legitimate work credentials. They log in as you. They send emails from your address. They access files you can see and systems you use. To everyone else, it looks like you’re working normally.

The damage spreads quickly. Attackers use compromised accounts to steal sensitive data, install malware across your network, send convincing phishing emails to your colleagues, access customer information, and wire money to fraudulent accounts. In 2025, the FBI received about 4,700 account takeover complaints, with $359.7 million in reported losses.

Your personal life gets affected too. When work accounts get breached, you spend hours changing passwords, explaining what happened to security teams, and worrying about what attackers accessed. Your reputation takes a hit when colleagues receive scam emails from your address.

How Hackers Access Your Accounts

We all have too many passwords to remember. It is tempting to use the same password for Netflix, Facebook, and your work email. This habit is dangerous.

Criminals know people reuse passwords. When a site like a hotel loyalty program or a social network gets breached, hackers take those email and password combinations. Then they use automated software to try those same combinations on thousands of other websites, including corporate login portals. This technique is called credential stuffing.

If you use the same password for work that you use for a personal account, you are at high risk. Research shows that 70% of takeover victims had reused their passwords.

How Hackers Get Your Passwords

Phishing is one of the most common ways attackers break in. Verizon’s 2026 Data Breach Investigations Report found that phishing was the starting point for 16% of breaches.

Modern phishing emails look professional. They might appear to come from your IT department asking you to “verify your account” or from HR regarding “open enrollment.” They might even appear to come from your boss.

Artificial Intelligence (AI) has made these attacks harder to spot. Attackers use AI to write perfect emails without spelling errors or awkward phrasing. They can even create deepfake voice messages to trick you into sharing information.

SIM Swapping

In a SIM swap attack, a criminal contacts your mobile carrier. They pretend to be you. They might claim they lost their phone and need to activate a new SIM card. If they convince the carrier, your phone service—and your phone number—moves to their device.

Once they have your number, they can intercept the SMS security codes sent to your phone. This allows them to bypass security checks and reset your passwords.

MFA Fatigue

Many organizations use Multi-Factor Authentication (MFA). This is when you get a prompt on your phone to approve a login. It is a great security tool, but attackers found a way to break it called MFA Fatigue.

They get your password and try to log in. You get a prompt on your phone asking to approve the login. You deny it. But they try again. And again. And again.

Eventually, the victim gets frustrated, confused, or just wants the notifications to stop. They hit “Approve.” That is all the attacker needs. This exact method was used to breach major companies like Cisco and Uber.

How To Protect Yourself

MFA is still the most effective step you can take to protect your accounts. Microsoft research from 2023 shows that MFA lowers the risk of compromise by 99.22%.

MFA works because it requires two things: something you know (your password) and something you have (your phone or a security key). If an attacker steals only your password, that second factor usually stops them. But MFA isn’t foolproof. Proofpoint’s 2024 to 2025 data shows that 59% of organizations with taken-over accounts had MFA turned on for those accounts. Attackers get around it with fake login pages that steal your session after you sign in, MFA fatigue, and SIM swapping.

Choose the Right MFA Method

Not all MFA options offer the same protection. You should choose the strongest method available to you.

• Security Keys (Best): These are small physical devices like YubiKeys that plug into your computer. They are extremely secure because they cannot be phished.
• Passkeys (Excellent): These let you sign in with the same fingerprint, face scan, or PIN you use to unlock your device. Like security keys, they cannot be phished.
• Authenticator Apps (Good): Apps like 2FAS or Proton Authenticator are very secure. In a 2023 Microsoft study, attackers got past the Microsoft Authenticator app 0.99% of the time, compared with 1.66% for SMS codes.
• SMS Codes (Acceptable): Receiving a code via text message is better than nothing. But remember, SIM swapping makes this method vulnerable.
• Email Codes (Weak): If an attacker has access to your email, sending a code there won’t stop them.

Responding to Unexpected MFA Prompts

You might receive an MFA prompt when you are not trying to log in. This is a critical moment.

Stop immediately. Never approve a request you did not initiate. It means someone else has your password and is trying to break in.

If this happens, deny the request. Then, contact your IT security team right away. They can help you change your password and check if the attacker tried anything else. Reporting this quickly can save your organization from a major breach.

Master Password Security

For years, we were told to use passwords like Tr0ub4dor&3. These are hard for humans to remember but easy for computers to guess.

Current guidance from the National Institute of Standards and Technology (NIST) focuses on length. A longer password is much stronger than a short, complex one. A phrase made of random words works well, but use at least six words, as the Electronic Frontier Foundation (EFF) recommends. Four words aren’t enough if a company’s password database gets stolen. In a 2026 Specops test, a single graphics card made about 220 billion guesses per second against weakly protected passwords. At that speed, a four-word phrase can fall in minutes to hours. And don’t copy famous examples like correct-horse-battery-staple. That exact phrase appears 4,173 times in Have I Been Pwned’s list of breached passwords.

Use a Password Manager

The human brain cannot remember 50 unique, strong passwords. You shouldn’t try.

A password manager is the solution. It generates long, random passwords for every account and remembers them for you. You only need to remember one strong master password to unlock the vault.

Enterprise password managers integrate directly with your work systems. If your company offers one, use it. It stops you from reusing passwords and makes logging in faster.

What Never to Do

Avoid these common bad habits to keep your credentials safe:

• Never reuse passwords. If one site gets breached, all your accounts are at risk.
• Don’t share credentials. Even with a trusted colleague. If they get hacked, you get hacked.
• Avoid sticky notes. Writing your password on a note stuck to your monitor defeats the purpose of a password.
• Don’t save work passwords in a personal browser profile. If that profile syncs to a personal account, your work passwords go with it. Cisco’s 2022 breach started when attackers got into an employee’s personal Google account that held synced work passwords.