A digital signature that holds up in court

Not just a signature on a screen — a secured electronic signature under Israeli law, with a full activity log that identifies who signed, when, from where, and on which device.

Why a WhatsApp PDF contract doesn't actually protect you

Sending a PDF contract by email or WhatsApp might look like a convenient solution — but legally, it leaves you far more exposed than you'd think.

You can't prove who actually signed

A scanned signature sent over WhatsApp has no OTP verification, no IP address, no timestamp. If the tenant claims in court the signature isn't theirs — the burden of proof falls on you.

The tenant can change a clause before the photo

When signing a PDF by pen and snapping a photo, the tenant can edit a clause with the same pen — and you won't notice. A secure digital contract locks the document right after signing.

Enforcement takes months and thousands of shekels

Without an audit trail, you first have to go to court to validate the contract — before you can even start collecting the debt from the tenant who stopped paying.

Secured Digital Signature

The legal defense you bring to court

It's not just a signature on a screen — it's a full activity log that proves who signed, when, from where, and on which device. This is what stands behind every signature on LeaseLink.

SMS OTP identity check

Each signer is verified with a one-time code sent to their phone — only they can sign on their behalf.

IP address + geo

Each party's IP is logged at signing time, including geolocation as corroborating evidence.

Precise timestamp

Exact time and date of every signature — impossible to forge or dispute later.

Device & browser fingerprint

The device User-Agent is recorded alongside the signature — strong evidence in any dispute.

Tamper-proof locked PDF

After the final signature, the document is cryptographically sealed. Any change becomes instantly visible.

Legally valid under Israel's Electronic Signature Law, 5761-2001 — "Secured Electronic Signature" tier, fully equivalent to a handwritten signature.
Signature log — LeaseLink
DOC #A7F2
DL
Danny Levi
Tenant · SMS verified
IP address
82.102.16.214 · TLV
Timestamp
14 Apr 2026, 16:42:08
Device
iPhone 15 · Safari 17
OTP verified
8 · 4 · 9 · 1
Document signed & locked
SHA-256 · a7f2…c41

The 3 tiers of electronic signature in Israeli law

Israel's Electronic Signature Law (2001) defines three tiers. LeaseLink operates at Tier 2 — "Secured Electronic Signature", fully equivalent to a handwritten signature for residential leases.

Tier 1 — Simple electronic signature

A scanned signature, mouse drawing, or typed name in an email. Weak identification, can't detect document changes after signing. Easily challenged in court and requires external proof.

What we use

Tier 2 — Secured electronic signature

Unique to the signer, reliable identification via OTP, and detects any post-signing change. Fully equivalent to a handwritten signature — the correct tier for residential leases, and the tier LeaseLink uses.

Tier 3 — Certified electronic signature

A secured signature backed by a government-issued digital certificate (e.g. physical token). Required for Land Registry or mortgages — completely unnecessary for a standard residential lease.

Frequently asked questions

What is a "Secured Electronic Signature"?

One of three tiers defined by Israel's Electronic Signature Law (2001). Tier 2 — unique to the signer, allows definite identification, and detects any post-signing change. Fully equivalent to a handwritten signature.

Is this signature admissible in court?

Yes. Recent rulings by Israeli courts have accepted digitally-signed lease contracts as admissible. Our activity log — IP, OTP, timestamp, device fingerprint — provides the corroborating evidence needed.

What if the tenant claims they didn't sign?

You have the activity log: the phone number that received the OTP, the IP address from which the signature was made, exact timestamp, and device fingerprint. Far stronger proof than a scanned signature on a PDF.

Where is the data and the contract stored?

In a fully encrypted secure cloud, per Amendment 13 of Israel's Privacy Protection Law. Both parties get the signed PDF, and a backup is kept with us in case of dispute.

Does signing work on mobile?

Yes. The tenant gets an SMS link, opens it in any browser (no app), enters the OTP, and signs. Works from any device, anywhere.

The strongest signature for your lease

Create a new contract, or upload your existing PDF — your signature will come with the full activity log that proves it's real.

Start now — digitally-signed contract

Free draft · ₪39 only to sign · No credit card