eSignature legality summary
The ECA provides that information is not denied legal effect merely for being electronic (s.6(1)). A “digital signature” under the DSA — certified by a licensed certification authority — is as legally binding as a handwritten signature (s.62). So an ordinary reliable electronic signature is valid for commercial transactions, while a DSA digital signature is the enhanced, certificate-based form.
Types of permitted electronic signature
Under the ECA an electronic signature must be attached or associated with the message, adequately identify the person and show approval, and be “as reliable as appropriate” — the creation means under that person’s sole control, with tamper-evidence for the signature and the document. A DSA “digital signature” uses asymmetric cryptography and must be verifiable via a valid licensed-CA certificate and affixed with intent to sign.
Documents that may be signed electronically
Available for any commercial transaction (contractual or not) — supply or exchange of goods and services, agency, investments, financing, banking, and insurance — including federal and state government commercial transactions.
Use with caution / not typically appropriate
Some documents need additional formalities (attestation by a Commissioner for Oaths or notarization) — for example annual financial statements lodged with the Companies Commission, and sealed instruments dealing with real property and transfers.
- Powers of attorney
- Wills and codicils
- Trusts
- Negotiable instruments (promissory notes, bills of exchange)
- Documents needing a seal or notarization/attestation (e.g., real-property instruments, company annual accounts)
Seminal court cases
- Yam Kong Seng & Anor v Yee Weng Kai [2014] 4 MLJ 478
Primary sources
- Electronic Commerce Act 2006
- Digital Signature Act 1997
Disclaimer: This guide is general information, not legal advice, and is not a guarantee that any signature will be enforceable for a particular document, transaction, or jurisdiction. E-signature and data-protection laws change frequently. Confirm the requirements for your specific document and parties, and consult a licensed lawyer in the relevant country before relying on electronic signing.
Last reviewed: June 15, 2026