# Security

# Authentication and Account Password

<div id="bkmrk-it-has-a-centralized">IT has a centralized authentication system, that is, a unique identification system, which allows all its users to access the various informed services, using the same authentication credentials - the same username and password.  
</div><div id="bkmrk-">  
</div><div id="bkmrk-given-the-degree%C2%A0of-">Given the degree of criticality of this keyword, which allows access to multiple computer services, were used according to the following rules:</div><div id="bkmrk--0">  
</div><div id="bkmrk---a-keyword-must-hav">- A keyword must have at least eight characters and three different variants (uppercase, lowercase, numbers and punctuation);</div><div id="bkmrk---the-password-must-">- The password must be renewed periodically by the user;</div><div id="bkmrk--1">  
</div><div id="bkmrk-you-can-change-your-">You can change your password at [https://password.co.it.pt](https://password.co.it.pt/)</div>