It arrives in the inbox on a Tuesday morning.
The sender name says CEO. The wording feels believable. Even the signature looks authentic.
"Hey — can you jump on something fast? I'm stuck in meetings all day. 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. Everything is still new. They don't know the normal workflow yet, and they definitely don't want to be the rookie who questions the CEO in week one.
So they respond and try to help.
And with that one decision, the damage begins.
Why week one is the biggest risk
Every spring, companies welcome a fresh group of employees, many of them recent graduates and summer interns starting their first real jobs. For businesses, 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 employees.
Hackers aren't targeting your most experienced people. They focus on the ones still learning the culture, the processes, and the unwritten rules. Early on, unfamiliarity creates a gap they can exploit.
A new employee doesn't yet know what a legitimate request should sound like. They don't know how the CEO normally communicates. They haven't built the instincts or confidence that come with time, and attackers use that uncertainty against them.
But the issue isn't the new hire. The real danger isn't someone who is reckless. It's the person who wants to be helpful.
If you own a business, you probably already know exactly who on your team would answer first.
The true weakness isn't training. It's the setup.
Think back to that employee's first day.
The laptop wasn't ready. Access wasn't fully provisioned. The email account was still being created. They borrowed a coworker's login to check one thing quickly. They saved a file on their desktop because the shared drive wasn't available. They used their personal phone to look up a client number because it was faster.
None of that seemed dangerous. It just felt practical. Like the kind of improvisation that gets you through a busy first day.
But during week one, before everything is fully established, a few quiet risks appear. Shared credentials leave no clear trail. Files drift outside backup protection. Personal devices interact with company data. And no one explains what to do when something doesn't look right.
That's why the Keepnet report matters: new employees are 44% more likely to fall for phishing than long-tenured staff. That difference isn't caused by laziness. It's caused by disorder. When onboarding is messy, security becomes an afterthought. That's exactly where the phishing email slips in.
The attack didn't create the weakness. Day one did.
What a secure first day should include
Solving this doesn't require an hour-long security lecture on day one. It requires three essentials to be in place before the employee shows up.
1. Their access is ready, not improvised.
That means the laptop is prepared, 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 in your company.
This can be a brief 10-minute conversation. Does the CEO ever email about payments? Does anyone? What should they do if something feels suspicious? This isn't a formal training module; it's basic orientation.
3. They know exactly where to ask questions.
The employee who paused before clicking that email likely would have asked for help if they knew who to ask. Most week-one mistakes stay hidden because new hires don't want to seem inexperienced.
Give them a person. Give them a 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 is already strong. Maybe your team is small enough that first days feel more personal than procedural. But if a new hire has ever had to make it up as they go, or if you're planning to hire this spring, it's worth having the conversation before that Tuesday email lands.
Click here or give us a call at (802) 331-1900 to schedule your free Discovery Call.
And if you know another business owner who's hiring soon, pass this along. The smartest time to lock the door is before anyone tries the handle.
