The message lands in the inbox on a Tuesday morning.
It appears to come straight from the CEO. The sender name checks out. The wording sounds believable. Even the signature feels legitimate.
"Hey — can you jump on something for me really quickly? I'm tied up in back-to-back meetings. I need you to process a vendor payment. I'll fill you in later."
The new hire hesitates.
They've only been there four days. They're still learning the workflow, still figuring out the unwritten rules, and they definitely don't want to be the person who questions the CEO in week one.
So they try to be helpful.
And that is all it takes for the damage to begin.
Why week one is the easiest time to exploit someone
Each spring, companies welcome a fresh group of employees, including recent graduates and summer interns taking on their first professional roles. For the business, it's onboarding season. For cybercriminals, it's open season.
Keepnet Lab's 2025 New Hires Phishing Susceptibility Report found that CEO impersonation emails are 45% more likely to work on new hires than on experienced staff.
Attackers don't aim for the most seasoned people on your team. They target the ones still getting oriented, because early on, everything feels unfamiliar and nothing feels certain.
A new employee doesn't yet know what a normal request looks like. They don't understand how leadership typically communicates. They haven't built the instincts or confidence to spot a setup, and criminals use that uncertainty to their advantage.
But here's the important part: the new hire is not the flaw. The biggest risk is not recklessness. It's the instinct to be helpful.
If you manage a business, you probably already know which person on your team would answer first.
The real problem isn't training alone. It's the system around it.
Think about that person's first day.
The laptop wasn't ready. Access wasn't finished. The email account was still being created. They borrowed someone else's login to get one thing done. They saved a file on their desktop because the shared drive was unavailable. They used their personal phone to look up a client number because it was quicker.
None of that felt dangerous. It felt practical. It felt like surviving a hectic first day.
But during that first week, while the basics are still being assembled, several risks quietly show up: shared credentials create untracked accounts, files escape backup coverage, personal devices touch company data, and no one explains what to do when something seems suspicious.
That is where the Keepnet report becomes even more alarming. New employees are 44% more vulnerable to phishing than tenured staff. The reason isn't carelessness. It's disorder. When onboarding is messy, security becomes an afterthought. That is exactly the kind of environment a phishing email is designed to enter.
The attack didn't create the weakness. Day one did.
What a secure first day should include
Solving this doesn't mean giving a long cybersecurity lecture on day one. It means making sure three essentials are in place before the new hire even walks through the door.
1. Their access is ready, not improvised.
The laptop should be prepared, credentials should already exist, and permissions should be clearly assigned. No borrowed logins, no temporary shortcuts, and no "we'll fix it later this week."
2. They understand what normal looks like in your company.
This can be a quick 10-minute conversation. Does the CEO ever email about payments? Does anyone? What should they do if a request feels unusual? This isn't a full training session; it's smart orientation.
3. They have a safe place to ask questions.
The person who paused before clicking that email probably would have asked someone if they knew who to contact. Many first-week mistakes happen in silence because new hires don't want to look inexperienced.
Give them a contact. Give them a process.
Most security failures don't happen because someone ignores policy. They happen because no one explained the policy yet.
Maybe your onboarding is already strong. Maybe your team is small enough that the first day feels personal instead of procedural. But if a new hire has ever had to make things up as they go — or if you're planning to add someone this spring — it's worth reviewing your process before that Tuesday morning message arrives.
Click here or give us a call at 314-993-5528 to schedule your free 10-Minute Discovery Call.
And if another business owner is about to bring someone on board, send this their way. The smartest time to lock the door is before anyone tries to open it.
