An email lands on a Tuesday morning, and at first glance, nothing seems unusual.
It appears to come from the CEO. The sender name checks out, the tone feels legitimate, and even the signature looks right.
"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 hesitates.
They've only been with the company for four days. They're still learning the workflow, still trying to understand what is normal, and definitely not eager to challenge what looks like a request from the CEO in their first week.
So they step in and do what they're asked.
In a matter of minutes, the harm is already underway.
Why the first week is the highest-risk week
Each spring, companies welcome a fresh group of employees, many of them recent graduates and summer interns starting their first professional roles. For your team, it's onboarding season. For cybercriminals, it's prime opportunity.
According to Keepnet Lab's 2025 New Hires Phishing Susceptibility Report, CEO impersonation emails are 45% more likely to succeed with new hires than with experienced employees.
Attackers don't aim at your most seasoned staff. They target the people still trying to figure everything out, because the early days create a gap where familiar patterns don't yet exist and confidence hasn't had time to form.
A new employee doesn't yet know what a standard request looks like. They don't know how the CEO usually communicates. They haven't built the instincts that come from experience, and criminals exploit that uncertainty.
But the bigger issue isn't the new employee. The real risk isn't someone being reckless. It's someone trying to be helpful.
If you lead a business, you probably already know exactly who on your team would respond first.
The problem isn't just training. It's the system.
Think about a new employee's first day.
The laptop wasn't fully set up. Access wasn't ready yet. The email account was still pending. They borrowed a coworker's login to check one urgent item. They saved a file locally 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 unsafe. It felt efficient. It felt like the right way to keep moving on a chaotic first day.
But during that first week, before the basics are in place, small vulnerabilities quietly stack up. Shared credentials leave gaps in accountability, files slip outside backup coverage, personal devices touch company data, and nobody has explained what to do when something feels suspicious.
The Keepnet report also found that new employees are 44% more susceptible to phishing than tenured staff. That difference isn't about negligence. It's about disorder. When onboarding is messy, security gets pushed aside. That's exactly the kind of environment a phishing email is designed to exploit.
The attack didn't create the weakness. The first day did.
What a secure first day should include
Preventing this doesn't require a lengthy security lecture on day one. It requires three essentials to be ready before the employee arrives.
1. Their access is set up properly, not improvised.
That means the laptop is ready, credentials are created, and permissions are clearly assigned. No shared logins, no stopgap fixes, and no "we'll handle that later this week."
2. They understand what a legitimate request looks like in your organization.
This can be a quick 10-minute conversation. Does the CEO ever email about payments? Does anyone? What should they do if something seems unusual? This isn't formal training; it's practical orientation.
3. They know exactly where to go with questions.
The employee who paused before clicking that email might have asked for help if they'd known who to contact. Most first-week mistakes stay hidden because new hires don't want to look inexperienced.
Give them a person. Give them a process.
Most security failures don't happen because someone chooses to ignore the rules. They happen because the rules haven't been made clear yet.
Maybe your onboarding process is already strong. Maybe your team is small enough that the first few days feel personal instead of procedural. But if you've ever watched a new hire make it up as they go through week one — or if you're planning to bring someone on this spring — it's worth addressing before that Tuesday morning email arrives.
Click here or give us a call at (419) 522-4001 to schedule your free 15-Minute Discovery Call.
And if you know another business owner who's hiring soon, pass this along. The best time to lock the door is before someone tries to open it.
