It is possible to invalidate a Digital Signature Certificate (DSC) if it is not used correctly by the individual. There are a number of different ways that DSCs can be invalidated. A Digital Signature Certificate (DSC) is extremely beneficial when it comes to securely filing documents online, such as e-tender, GST return, income tax details and other compliance matters. It is valid under Indian IT laws and is governed by the Controller of Certifying Authorities.

However, many individuals and business owners face issues simply because they make avoidable mistakes while using their DSC.

In this blog, let’s understand the most common mistakes and how you can avoid them.

1. Not Renewing DSC on Time

Most of the users forget the expiry date of the certificate.

A DSC has a validity of 1 or 2 years. If it expires:

  • You cannot sign documents

  • MCA or GST filings may fail

  • Compliance deadlines may be missed

This becomes critical for filings on the Ministry of Corporate Affairs portal.

Tip: Set a reminder at least 30 days before expiry.

2. Sharing the USB Token Password

Your DSC USB token contains your private key. Sharing its password with:

  • Office staff

  • Accountants

  • Third parties

can lead to misuse or fraud.

Remember, a DSC is legally equivalent to your physical signature.

Tip: Never share your token password. Always sign documents personally.

3. Losing the USB Token

Many users keep their DSC token casually in office drawers or bags. If it gets lost:

  • Your digital identity can be compromised

  • Someone may attempt unauthorised usage

If lost, immediately request revocation through your Certifying Authority approved by the Controller of Certifying Authorities.

4. Installing DSC Incorrectly

Improper installation is a very common technical issue.

Mistakes include:

  • Not installing token drivers

  • Using unsupported browser versions

  • Not registering DSC properly on government portals

This leads to errors during signing.

Tip: Always follow proper installation steps or take professional help.

5. Using Expired or Wrong Class of DSC

Some users apply for the wrong type of certificate. For example:

  • Using Individual DSC for company filings

  • Using the wrong certificate for e-tendering

Today, most official work requires a Class 3 DSC.

Tip: Confirm purpose before applying.

6. Not Updating Details After Company Changes

  • Company name changes

  • Director resigns

  • Email/mobile changes

But DSC is not updated; it can create compliance issues.

Tip: Apply for a fresh DSC when there are major detail changes.

7. Ignoring Security Practices

Common security mistakes include:

  • Using DSC on public computers

  • Not installing an antivirus on your computer

  • Keeping your password saved in the browser

This increases the risk of misuse of the Digital Signature Certificate.

Tip: Always use DSC on a secure, personal system.

8. Not Revoking DSC After Employee Leaves

As soon as a director, employee, or authorised signatory resigns from a company, it is essential to revoke their DSC.

If not, it may result in severe legal and financial consequences.

9. Trying Multiple Incorrect Password Entries

  • Trying the wrong password multiple times can result in your USB token getting locked permanently.

  • It may become difficult to reset it, and in some cases, a fresh issuance is required.

Why It is Important to Avoid These Errors

A Digital Signature Certificate is more than just a technical solution; it is your virtual identity.

  • Filing rejection

  • Legal risks

  • Financial loss due to non-compliance

  • Data breach risks

📌 Note: If you want to apply for a Digital Signature Certificate or USB Token, please visit our site of dscregistration

Conclusion

Using a Digital Signature Certificate is as important as having one. By not committing these mistakes, you will be able to have a smooth online compliance process. If you take care of your Digital Signature Certificate like your signature, you will never have major problems.