Important Notice

ITO is charged with protecting the security of University’s networks from malicious computer attacks, malware infection, data leakage, service interruptions and network harassment.

Examples of security incidents include:

  • Unauthorised modification or deletion of data;
  • Unauthorised modification of the system software, hardware or connections;
  • Modification of system hardware, software or connections in breach of the Information Security Policy;
  • Hacking or attempted hacking by insiders or outsiders;
  • Suspected or actual illegal activity;
  • Unauthorised use of systems for personal gain or purposes; and
  • Unauthorised copying of information or software.


To log an Incident Request, please click here.

Adobe Acrobat Pro DC – securing documents with password.

You can protect a PDF document from unauthorised access by setting a password to the document.

Important: If you forget the password, there is no way to reset and you will never be able to access the file. Consider keeping a backup copy of the original PDF document in a safe location.

Microsoft provides a password-protection feature for you to safeguard your Office documents such as Word, Excel and PowerPoint files.

A password is case-sensitive and can consist of up to 255 characters. We highly recommend you to set a password with at least 8 characters. Microsoft adopts AES 128-bit advanced encryption by default. You can choose other encryption techniques if you want. When choosing a password, you may consider to combine upper and lowercase letters, numbers and symbols for a stronger protection. For instance, Y68h!et5 is a strong password whereas House27 is a weak one. It is important that you must remember your password. If you forget your password, ITO or even Microsoft is not able to open your Office documents.

The procedure for setting password in Microsoft Office documents is as follows

For Office 2010 / 2013 / 2016 Documents

1)In an open document, click File > Info >


  • Protect Document (for Word document)
  • Protect Excel/Workbook (for Excel worksheet/workbook)
  • Protect Powerpoint/Presentation (for Powerpoint presentation)
2)Select Encrypt with Password, the Encrypt Document dialog box appears.
3)In the Encrypt Document dialog box, type your password in the Password box and then click the OK button.
4)In the Confirm Password dialog box, type the password again in the Reenter password box.
5)To make the password effective, you need to save the document once as usual by clicking the Save icon.

To find answers to frequently asked questions on 2FA, please click here.

For details on personal data leakage prevention (DLP) for email, please click here.

For details on ESET USB Endpoint Encryption (EEE), please click here.