The Employee Who Just Clicked the Wrong Link

It happens fast. An email arrives that looks like a shipping notification, a payment confirmation, or a message from someone the employee recognizes. They click the link. A page loads, or nothing happens, and within a few seconds the question sets in: was that real?

What happens next matters more than the click itself. The businesses that handle these situations best are usually the ones that already have a plan. Steven Burstyn has worked with businesses that caught an incident quickly and businesses that waited, and the outcome is rarely the same.

You Clicked. Now What?

Some phishing attacks are credential harvesters that capture login information the moment a form is submitted. Others download malware that begins running immediately. Some do not do anything obvious right away. What you do in the next few minutes affects how much damage any of those scenarios can cause.

The right response in the first few minutes:

Disconnect the machine from the network. Pull the ethernet cable or turn off Wi-Fi. This does not undo what happened, but it stops an active infection from communicating outward or spreading to other devices on the same network. Do not shut the computer down. Powering off can destroy useful forensic evidence and make it harder to determine exactly what happened.

Do not keep working on the machine. Do not close the browser, delete the email, or try to run a quick antivirus scan and move on. The machine should be examined before it goes back into use.

Tell someone immediately. In a small business, that means the owner or whoever handles IT decisions. The instinct to quietly hope it was nothing is understandable, but delay is how a contained incident becomes an expensive one.

What a Phishing Link Can Actually Do

The damage from a phishing click depends on what the link was designed to do. The three most common scenarios for small businesses:

Credential theft. The link led to a fake login page for a service the employee uses, Microsoft 365, a bank portal, a payroll system. If they entered a username and password, those credentials are compromised and need to be changed immediately, on every account where the same password was used.

Malware installation. The link triggered a download that installed software on the machine. The software may be running in the background right now. This requires a proper examination, not a consumer antivirus scan that may not detect what was installed.

Reconnaissance. Some links simply confirm that the email address is active and the recipient clicks. No immediate payload, but the address gets flagged as a target for more sophisticated follow-up attacks. Less urgent in the short term but worth knowing.

Passwords First, Then the Machine

If there is any chance credentials were entered on the page the link opened, change passwords before anything else. Start with email, banking, and any financial or payroll accounts. Then work through any other service that uses the same password.

If the business uses multi-factor authentication on those accounts, check the login history for activity that did not come from a known location or device. Most platforms surface this in account security settings. Unusual logins after the time of the click are a strong indicator the credentials were used.

Changing passwords takes minutes. Recovering from a compromised bank account or a hijacked email used to send fraud to clients takes considerably longer.

Getting the Machine Examined

A machine that may have been compromised needs to be looked at by someone who knows what to look for. Malware removal is not the same as running a scan. It involves examining what processes are running, what was recently installed, what network connections the machine has made, and whether anything is persisting across restarts. Consumer tools often miss indicators that a trained examination catches.

If the machine handles financial transactions, stores client data, or has access to shared drives, the examination is not optional. The question is not whether the machine feels fine. It is whether it actually is.

The Network Is Also a Concern

A single compromised machine on a business network can become an entry point to everything else connected to it. File servers, shared drives, other workstations, and any cloud services the machine was authenticated to are all potentially reachable from an infected endpoint.

This is one reason why system monitoring that tracks unusual network activity is worth having in place before an incident happens. After a suspicious click, being able to review what the machine communicated with in the minutes following the event is considerably more useful than guessing.

After the Immediate Response

Review how the email got through. Most business email platforms have spam and phishing filters. If a convincing phishing email reached an inbox, it is worth understanding why and whether filter settings need adjustment.

Talk to the employee. Not to assign blame. Phishing emails are designed by people whose job is to make them convincing, and even careful people click the wrong thing. The conversation should be practical: what the email looked like, what to do differently next time, and that reporting a suspicious click immediately is always the right call.

Check whether the same email went to others. In many cases, a phishing campaign targets multiple addresses at the same organization. If one employee received it, others likely did too.

What Every Small Business Should Do Before a Phishing Attack

The businesses that handle these incidents best are the ones that decided in advance what to do. Not a complicated policy document. A simple understanding of: disconnect the machine, change the passwords, call for help. Three steps that anyone in the business can follow without needing to think clearly under pressure.

Most small businesses on Long Island do not have that in place. Creating a simple response plan takes very little time and can prevent a lot of confusion during an incident.

If This Just Happened, or If You Want to Be Ready When It Does

Unfrustrating Computers helps Long Island small businesses respond to phishing attacks, investigate suspicious activity, remove malware, and build practical security procedures before an incident turns into a larger problem. Steven Burstyn handles malware removal, post-incident examination, and practical security guidance that fits a small business operation.

Call 516-679-5540 or visit UnfrustratingComputers.com if something suspicious happened recently, or to talk through what your business would do if it did.