So I get this forwarded from one of our employees:

-------- Forwarded Message --------
Subject:        You've been added as a contact on Cotap
Date:   Wed, 29 Jul 2015 13:00:00 +0000
From:   Connections <connections@cotap-mail.com>
To:     person <person@company.com> 

See who you know on Cotap
Cotap
<https://www.cotap.com/?utm_source=email&utm_medium=logo&utm_campaign=email>





    Cotap is a secure texting app for teams.


        View the COMPANY directory.


Get Started



Are you using WhatsApp, GroupMe, or iMessage to text your coworkers? See
why <https://www.cotap.com/blog/whatsapp-for-work-is-nsfw/> Cotap is
better for work.



Sent by Cotap
<https://www.cotap.com/?utm_source=email&utm_medium=footer&utm_campaign=email>
| 55 New Montgomery Street #888 | San Francisco, CA 94105

Unsubscribe
<https://www.cotap.com/unsubscribed/?address=person%40company.com> |  
Privacy Policy <https://www.cotap.com/legal/privacy/>

The places where is says “person” had the employee’s email username, the places where I put “company”, it had the company name.

It certainly looks like we signed up for Cotap and let them send out an invitation, doesn’t it?

We didn’t.

I strongly suggest that you not use Cotap. If they’ll send deceptive spam, they can’t be trusted for anything. Certainly not your company’s security.