Digital Signature Management During Staff Offboarding: A Practical Guide
Learn how to establish secure digital signature management processes when employees handling USB tokens resign or change positions, avoiding legal risks.
Digital operations in Vietnam
Operational Risks of Neglecting Digital Signature Management During Offboarding
Proper digital signature management plays a vital role in corporate electronic transactions, especially when staff members holding USB tokens resign or transfer roles. Without a standardized retrieval and handover process, enterprises face severe risks such as unauthorized document signing, private key leakage, and disruptions during quarterly tax declarations. Security insights from FPT IS and Visnam emphasize that digital signatures rely on Public Key Infrastructure (PKI), where private keys carry legal weight equivalent to corporate seals or handwritten signatures.
If a departing employee retains the PIN or physical USB token, the business remains vulnerable to fraudulent contract execution or unauthorized financial approvals. Digitally signed electronic documents feature non-repudiation, creating binding legal obligations for the organization. Consequently, establishing clear protocols for digital signature management during employee transitions is essential to protect digital assets and preserve regulatory compliance.
Key Steps to Retrieve Devices and Update Digital Certificate Credentials
The revocation procedure must begin as soon as an employee submits a resignation or receives a transfer notice. Human resources and IT departments must coordinate to retrieve the physical USB Token, inspect its operational status, and obtain all administrative credentials for signature software. The receiving personnel must verify whether the underlying digital certificate remains valid before officially taking custody of the hardware device.
Immediately following device takeover, administrators must change default PINs or previous passwords to prevent unauthorized remote access. As recommended by FPT IS guidelines, private keys must never be disclosed to unauthorized parties. If there is any suspicion that a PIN was compromised or the secure key storage device was damaged, the organization must promptly notify the Certificate Authority (CA) to suspend or revoke the digital certificate.
Updating Signature Templates and Configuring Signing Software Settings
In addition to hardware security, businesses must update visual signature templates and system configurations. Guidelines from the Government Cipher Committee and Circular 68/2019/TT-BTC specify that an organization's electronic stamp image must be a transparent PNG file with a red seal, overlapping the left third of the authorized signer's signature. Administrators must remove the former employee's template and upload the new authorized manager's signature image.
Accounting and IT teams should verify online certificate status protocol (OCSP) and certificate revocation list (CRL) paths within the signing software. This configuration ensures that every electronic document is validated against current certificate status before issuance. If the system detects a revoked or invalid certificate, it automatically issues warnings and blocks the signing operation.
Transitioning to Remote Digital Signatures and HSM Solutions
For organizations with multiple signers or remote teams, relying on physical USB tokens creates operational bottlenecks and loss risks during staff turnover. Analysis from Visnam highlights that Remote Digital Signing and Hardware Security Module (HSM) solutions store private keys in secure central infrastructure, allowing authorized users to sign documents via mobile authentication without plugging USB tokens into desktop computers.
Adopting remote digital signature management enables IT administrators to revoke departing employees' access rights instantly through a centralized portal. Businesses eliminate the hassle of chasing physical tokens or worrying about key replication. However, companies should evaluate operational workflows and cost structures when choosing between USB tokens and remote signing solutions.
Compliance with Legal Frameworks and Upcoming 2026 Mandates
Aligning digital signature management with legal standards prepares businesses for regulatory shifts. According to LuatVietnam reports, starting November 1, 2026, digitally signed electronic documents will officially replace paper documents, circulating via the National Interoperability Axis. The system will automatically check and flag unsigned or invalidly signed electronic files, making rigorous certificate management essential.
Organizations are also required to archive electronic documents while preserving their legal validity throughout statutory retention periods. If digital certificates expire or become invalid due to unmanaged personnel changes, electronic transactions conducted during that period risk invalidation or rejection by tax authorities.
Offboarding Checklist for Enterprise Digital Signature Management
To streamline digital signature management during employee departures, administrative teams should implement a comprehensive checklist. Step one: Retrieve the physical USB token and sign a written handover record. Step two: Change the USB token PIN and update signing software passwords. Step three: Update the transparent PNG seal image and authorized signatory details on the platform. Step four: Review certificate expiration dates and contact the CA if renewal is required.
Step five: Ensure OCSP and CRL validation settings are enabled on operational workstations for automatic verification. Step six: File the completed handover documentation in HR and legal records. Strictly adhering to this checklist eliminates security vulnerabilities, prevents tax filing delays, and guarantees smooth, legally sound electronic operations.
Frequently asked questions
Contact TS68 for expert advice on digital signature infrastructure, remote signing integration, and secure enterprise operations.
Sources
- Chữ ký số cho doanh nghiệp: Dùng trong trường hợp nào? | Visnam
- Từ 01/11/2026, văn bản điện tử ký số thay thế văn bản giấy
- Tổng hợp 5 quy định quản lý chữ ký số doanh nghiệp mới ...
- Chữ ký số là gì? Quy định và giải pháp ký số linh hoạt
- Phụ lục II HƢỚNG DẪN KÝ SỐ CHUYÊN DÙNG CỦA BAN ...
- Tăng cường quản lý chữ ký số chuyên dùng công vụ trong ...
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