The message lands in the inbox on a Tuesday morning.
It appears to come straight from the CEO. The sender name is right. The wording feels believable. Even the signature seems legitimate.
"Hey — can you help me with something quickly? I'm in back-to-back meetings. Need you to handle a vendor payment. I'll explain later."
The new hire stops and thinks.
They've only been there four days. They're still learning the workflow. They don't yet know what's normal, and they certainly don't want to be the person who challenges the CEO in week one.
So they act on it.
And before anyone notices, the mistake has already caused damage.
Why the first week is the riskiest week
Each spring, companies welcome a fresh group of employees, many of them recent graduates and summer interns starting their first professional roles. For the business, it's onboarding season. For cybercriminals, it's prime hunting 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 target your most experienced people first. They focus on employees who are still learning because early in the job, everything is unfamiliar and certainty is in short supply.
A new employee doesn't yet know what an ordinary request looks like. They don't know how leadership typically communicates. They haven't built instincts or confidence yet, and criminals count on that uncertainty.
But the issue isn't the new hire. The biggest risk isn't someone being careless. It's someone trying too hard to be helpful.
If you own or manage a business, you probably already know which person on your team would answer first.
The real weakness isn't training. It's the setup.
Go back to that employee's first day.
The laptop wasn't ready. Their access hadn't been fully provisioned. Their email account was still pending. They used someone else's login to check one thing quickly. They saved a document on their local drive because they couldn't reach the shared folder. They reached for their personal phone to look up a client number because it was faster.
None of that seemed dangerous. It felt practical. It felt like getting things done on a chaotic first day.
But during that first week, while the basics are still being put in place, a few critical problems start to form quietly. Shared credentials create untracked accounts, files sit outside backup protection, personal devices touch company data, and no one has explained what to do when something feels suspicious.
The same Keepnet report found that new employees are 44% more vulnerable to phishing than long-tenured staff. That difference isn't about negligence. It's about disorder. When onboarding is messy, security becomes an afterthought. That's exactly the environment a phishing email is built to exploit.
The attack didn't introduce the weakness. Day one did.
What a secure first day should look like
Solving this doesn't require a long presentation on cyber risks during orientation. It requires three essentials to be ready before the new hire arrives.
1. Their access is prepared, not patched together.
That means the laptop is ready, credentials are created, and permissions are clearly assigned. No borrowed logins, no temporary fixes, and no "we'll handle it later this week."
2. They understand what normal communication looks like.
This can be a short 10-minute conversation. Does the CEO ever email about payments? Does anyone? What should they do if something feels wrong? This isn't formal security training; it's practical orientation.
3. They have a safe place to ask questions.
The employee who hesitated before opening that email might have checked first if they knew who to ask. Most first-week mistakes happen quietly because new hires don't want to seem inexperienced.
Give them a person. Give them a clear process.
Most security failures don't happen because someone ignores the rules. They happen because the rules haven't been explained yet.
Maybe your onboarding already works well. Maybe your team is small enough that the first few days feel more personal than procedural. But if you've ever watched a new hire improvise through week one — or you're preparing to bring someone on this spring — it's worth addressing before that Tuesday message shows up.
Click here or give us a call at 832-536-9012 to schedule your free Discovery Call.
And if another business owner in your network is hiring soon, pass this along. The smartest time to lock the door is before anyone tries it.
