The message lands in the inbox on a Tuesday morning.
It appears to come from the CEO. The name is right, the tone feels right, and even the signature looks convincing.
"Hey — can you help me with something quickly? I'm stuck in back-to-back meetings. I need you to take care of a vendor payment. I'll fill you in later."
The new hire hesitates.
They've only been there four days. Everything is still unfamiliar. They don't yet know what a normal request looks like, and they certainly don't want to be the person who challenges the CEO during their first week.
So they do what seems helpful.
And in an instant, the mistake becomes costly.
Why week one is the easiest time to exploit
Every spring, companies welcome a new class of employees, including recent graduates and summer interns starting 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 experienced staff.
Attackers aren't usually focused on your veterans. They target the people still learning the culture, because the beginning of employment is full of uncertainty and missing context.
A new employee doesn't yet know what a routine request looks like. They don't know how leadership typically communicates. They haven't had time to build the confidence or instincts that come with experience, and scammers know it.
But the issue isn't the new employee. The biggest risk isn't someone being careless. It's someone who wants to help.
If you lead a business, you already know which people on your team would respond immediately.
The real weakness isn't awareness. It's the process.
Go back to that employee's first day.
The laptop wasn't ready. Access wasn't finished. Their email account was still being set up. They used someone else's login to check a file quickly. They stored a document locally because the shared drive wasn't available. They used a personal phone to find a client number because it was faster.
None of it felt unsafe. It felt practical. It felt like getting through a chaotic first day the best way they could.
But during that first week, before everything is fully configured, a few things quietly go wrong. Shared credentials create untracked accounts, files sit outside your backup systems, personal devices touch company data, and no one explains what to do when something doesn't look right.
The same Keepnet report also found that new employees are 44% more likely to fall for phishing than tenured staff. That gap isn't about negligence. It's about disorder. When onboarding is messy, security becomes an afterthought. That's exactly the kind of environment a phishing email is designed to enter.
The attack didn't create the vulnerability. The first day did.
What a secure first day should include
Solving this doesn't require a long security lecture on day one. It requires three essentials to be ready before the new hire arrives.
1. Their access is set up in advance, not figured out on the fly.
That means the laptop is prepared, credentials are created, and permissions are clearly assigned. No shared logins, no temporary shortcuts, and no "we'll handle it later this week."
2. They understand what normal communication looks like in your company.
This can be a fast, 10-minute conversation. Does the CEO ever ask for payment help by email? Does anyone? What should they do if something feels suspicious? This isn't formal training; it's basic onboarding clarity.
3. They have a safe person to ask when something feels off.
The employee who paused before opening that message likely would have checked with someone if they knew who to contact. Most early mistakes happen quietly because new hires don't want to seem unsure.
Give them a person. Give them a clear process.
Most security failures don't happen because someone ignores the rules. They happen because no one has explained the rules yet.
Maybe your onboarding is already strong. Maybe your team is small enough that first days feel more personal than formal. But if you've ever seen a new hire improvise their way through week one — or if you're planning to bring someone on this spring — it's worth addressing before that Tuesday email shows up.
Click here or give us a call at 929-523-2921 to schedule your free Call With Our CEO.
And if you know another business owner who's hiring soon, forward this to them. The smartest time to secure that door is before someone tries it.
