speculatrix is right. A hidden SSID adds nothing to security. It gives a false sense of security. Crackers can still see the AP even including the security profile and encryption used. Think of it for a moment: its wireless, you know the protocol is there, you know its using a channel, you just don't know the name.

The fact you hide your SSID might make crackers feel more inclined to check out the security of your WiFi over another. After all, if its worth hiding, it might be worthwhile to check what is hidden. So it might be less secure.

If your employer is using WEP or WPA he should upgrade to WPA2-Personal or WPA2-Enterprise (with AES), or something like SSH + VPN/IPsec.

I suggest you understand the root of this problem, and kindly inform your employer about this.