Someone Is Selling Cheap ZoomInfo Data: Is It Safe to Buy?

Cheap ZoomInfo data from a third party means the seller is passing on data their licence forbids them to share, and you get no licence of your own. ZoomInfo's published terms bar licensees from selling or disclosing the data and from sharing logins, with liquidated damages of $2 per contact record. Practically, resold exports are also old and widely mailed, so they bounce. If you've already bought some, verify it before any send and treat it as a company list, not a contact list.

An r/sales thread asked whether "cheaper" ZoomInfo data offered by someone who reached out was legit. Here's what the licence says and what the data tends to be like.

What ZoomInfo's licence terms say

From ZoomInfo's License Terms and Conditions, version of 1 May 2025, read 2 November 2026:

Section	What it says
2.1, logins	Usernames and passwords "may not be shared and may not under any circumstances be used by anyone who is not an Authorized User." Disclosing them counts as adding paid users
2.3, distribution	The licensee "shall not distribute, sublicense, transfer, sell, offer for sale, disclose, or make available any of the Licensed Materials or any part of the Services to any third party"
7.3, damages	Liquidated damages of "$2.00 per Licensed Materials Contact record" for each record disclosed or made available, per third-party recipient

These terms bind ZoomInfo's customers. A buyer isn't a party to them, but also has no licence to the data, and the seller's access can be cut off at any time. We can't give legal advice; if the numbers are big enough to matter, ask a lawyer.

Why resold data performs badly

• It's a snapshot. An export reflects the day it was pulled. B2B contacts change jobs constantly; our post on B2B contact data decay covers how fast.
• It's shared. The same file is often sold to many buyers, so the same people get the same pitch from several senders. That drives spam reports.
• It can't be refreshed. You can't re-pull updated records or request corrections.
• There's no recourse. The bounce credit terms that some vendors publish (see lead data bounce refunds) don't apply to a file bought from a stranger.

If you already have the file

1. Don't import it into your sequencer as is.
2. Clean it. Our post on cleaning a ZoomInfo export covers the columns and the dedupe, then verify on the verify page. Send nothing marked invalid, and hold risky rows back.
3. Test a small batch on a domain you can afford to lose, and stop if bounces or complaints climb. Our post on testing a new lead source has the sample sizes and pass marks.
4. Use it for accounts, not contacts. The company names and domains are the durable part. Pull current contacts from a source you're licensed to use, or find and verify them yourself with the email finder.

Safer ways to get the same contacts cheaply

• Licensed self-serve tools with published credit terms. Our post on questions to ask a B2B data vendor lists what to check.
• Build from public signals: company websites, hiring pages and public records, then find and verify the address.

What SimpleVerifier costs

The first 100 checks are free with a Google sign-in. Pro is $39 a month with the first 100,000 checks a month at full speed, then slower, never cut off, and one-time packs of 10,000 checks for $15 never expire. The email finder is included on Pro. See pricing.