GSuite calendar sharing can lead to the leakage of confidential information. As a G Suite administrator, you can help your employees avoid accidentally disclosing sensitive information by putting some reasonable guardrails on what sharing settings they are (and aren't) allowed to use to share their calendar.
Before we get deep into G Suite Admin configuration details, let's pause briefly to talk about what sensitive information is often in employee calendars. It's a lot more than most people think. Here are some examples of sensitive information that almost every company has somewhere in an employee's calendar:
These are just a few examples of information exposure via G Suite calendar sharing, but I'm sure if you look at your own calendar you can readily identify additional examples of items that would be problematic if they were accidentally shared publicly.
In G Suite Admin, administrators have the ability to easily put some common-sense guardrails on the level of external calendar sharing that is permitted companywide. The way that we typically recommend configuring this is a technique that limits the maximum sharing permission. Notice how we phrased that -- we're not automatically sharing all employee calendars. Rather, we're putting guardrails on the maximum amount of sharing that we allow, for employees that go through the effort to turn on any sharing at all. This is important because many employees have no business reason at all to want to share their calendars externally, but those that do will have certain limitations that prevent them from over-sharing.
The guardrails that we most frequently find ourselves recommending to clients, are shown in the following video where we configure a fictional G Suite company to prevent employees from externally sharing anything beyond free/busy information from their calendar:
Following along with the above video should take no more than five minutes, and could save your company from unwelcome data exposure risk.
G Suite calendar sharing is an easy information exposure risk to overlook. Many companies focus heavily on security their cloud-based file storage, their email, their financial systems, and their website. However, calendar sharing is a hidden exposure risk that carries substantial risk. The good news? It's easy to take the basic mitigation steps shown in the video in this article, and even easier to get in touch with Havoc Shield to take more nuanced follow-on steps to further protect yourself and your organization.