We recommend that you consider the risks of tag deployment as part of defining your tag management solution. Google Tag Manager effectively allows you to deploy code directly to your site. We also recommend that you consider the following risks as part of your tag strategy:
1.A malicious user may attempt to use Google Tag Manager to deploy code that steals secure information from customers.
2.A user may deploy code to the website that causes the website to break.
3.A user may deploy so many tags to the website that it causes the website to slow down for visitors.
We want to encourage and help you to use Google Tag Manager to find new and exciting ways to understand your customers. We don’t want you to break your websites or create headaches for our support teams. This is why we say that by using Google Tag Manager you accept the risks above.