An email lands on a Tuesday morning.
It appears to come from the CEO. The sender name checks out. The wording sounds right. Even the signature feels legitimate.
"Hey — can you jump on something for me? 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 here 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 questions the CEO in week one.
So they do the helpful thing.
And in a matter of minutes, the business is exposed.
Why week one carries the highest risk
Every spring, companies welcome a fresh group of employees, often including recent graduates and summer interns stepping into their first professional roles. For the business, it's onboarding season. For cybercriminals, it's prime opportunity.
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 employees with more experience.
Attackers don't usually target your most experienced staff first. They focus on the people still figuring things out, because the opening days create a narrow window where everything feels unfamiliar and nothing is fully certain.
A new employee doesn't yet know what an everyday request looks like. They don't know how the CEO typically communicates. They haven't had time to develop instincts or confidence, and criminals exploit that uncertainty.
But the real issue isn't the new hire. The biggest risk isn't carelessness. It's a well-meaning employee trying to be helpful.
If you lead a business, you probably already know who on your team would respond first.
The problem isn't just training. It's the process.
Think back to that employee's first day.
The laptop wasn't ready. Access wasn't fully provisioned. The email account was still being set up. They borrowed a coworker's login to check something quickly. They saved a file to their local machine because the shared drive wasn't available. They used a personal phone to look up a client number because it was faster.
None of it felt dangerous. It felt practical. It felt like getting through a busy first day the best way possible.
But during that first week, before systems are fully in place, a few critical risks quietly appear. Shared credentials create accounts nobody monitors, files move outside your backup protection, personal devices touch business data, and no one has explained what to do when something seems suspicious.
The same Keepnet report found that new employees are 44% more likely to fall for phishing than long-tenured staff. That gap doesn't come from recklessness. It comes from disorder. When onboarding is messy, security becomes an afterthought. That's the environment the phishing email is counting on.
The attack didn't create the weakness. The first day did.
What a secure first day should look like
Solving this doesn't require a lengthy security lecture on day one. It requires three essentials to be ready before the new hire arrives.
1. Their access is set up, not patched together.
That means the laptop is ready, credentials are issued, and permissions are clearly defined. No borrowed logins, no temporary fixes, and no "we'll handle it later this week."
2. They understand what normal looks like in your company.
This can be a fast, 10-minute conversation. Does the CEO ever email about payments? Does anyone else? What should they do if a message feels unusual? This isn't heavy training; it's practical orientation.
3. They have a safe place to ask questions.
The employee who paused before clicking that email likely would have asked for help if they knew who to contact. Most first-week mistakes happen silently because new hires don't want to appear inexperienced.
Give them a person. Give them a process.
Most security failures don't happen because someone ignores the rules. They happen because they don't know the rules yet.
Maybe your onboarding is already in good shape. Maybe your team is small enough that the first few days feel more personal than procedural. But if you've ever seen a new hire improvise their way through week one — or if you're preparing to hire this spring — it's worth addressing before that Tuesday email arrives.
Click here or give us a call at 919-741-5468 to schedule your free 15-Minute Discovery Call.
And if you know another business owner who's hiring soon, share this with them. The best time to close the door is before anyone gets the chance to walk through it.
