To opt out of 6sense in 2026, visit 6sense.com, scroll to the footer, click "Do Not Sell or Share My Personal Information," select "Opt out of the processing of your data," submit the form with your business email and employer, then verify via the Ketch email that arrives at your inbox. The whole process takes about 10 minutes.
What Is 6sense and Why It Has Your Data
6sense is a B2B revenue intelligence and intent data platform used by sales and marketing teams to identify "in-market" buyers. It is registered as an official data broker in California (Registration #563658) and holds detailed profiles on millions of business professionals — including people who have never signed up for anything from 6sense directly.
The types of information 6sense collects include:
- Business contact details: Your name, work email address, job title, phone number, and employer
- Intent data: Which topics you or colleagues at your company are researching online, gathered from third-party content consumption tracking
- Website visitor identification: De-anonymized browsing activity linked to specific companies and individuals
- Firmographic data: Company revenue, employee count, industry classification, and tech stack
- Behavioral signals: Patterns of engagement with online content, ads, and web properties across partner networks
How 6sense Tracks You Without Your Knowledge
6sense's website visitor identification technology can link your browsing activity to your company and even to you personally, often without any direct interaction. When you visit a website that uses 6sense's tracking pixel, your visit is logged, matched to a company IP range or cookie profile, and fed into their intent data engine. You may never know this is happening — until the cold email wave starts.
Step 1: Go to the 6sense Privacy Portal
Open a browser and navigate to 6sense.com. Scroll all the way to the bottom of the homepage and click the link labeled "Do Not Sell or Share My Personal Information" in the footer. This launches 6sense's Ketch-powered privacy rights portal in a new window.
Step 2: Open the "Your Rights" Menu
Once the privacy portal loads, look for "Your Rights" in the left-hand navigation menu and click it. This is where consumer requests are filed — do not use the general "Preferences" tab, which only manages cookie settings on 6sense.com and does not remove your data from their platform.
Step 3: Choose "Opt out of the processing of your data"
Under "Select a Request Type," pick "Opt out of the processing of your data." This tells 6sense to stop all processing of your personal information — a stronger request than a simple do-not-sell toggle. If you want your record erased entirely, also submit a "Deletion" request on the same page.
Step 4: Fill Out the Request Form
Enter the following information in the form:
- First name and last name (exactly as they appear on your professional profiles)
- Business email address (this is what 6sense uses to locate your record)
- Country and state or province
- Company website (this helps them match the correct profile)
Use the same email address that appears on your LinkedIn or company bio pages. If 6sense has multiple emails on file for you, submit a separate request for each one.
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Step 5: Verify Your Identity via Email
Click Submit. Within a few minutes, a verification email arrives from noreply@m.ketch.com (6sense outsources its privacy request handling to the Ketch platform). Click the "Verify My Identity" button in the email to confirm your request. Until you complete this step, your opt-out is not processed.
Check Your Spam Folder
The verification email comes from ketch.com, not 6sense.com — so aggressive spam filters (especially corporate Microsoft 365 and Google Workspace tenants) frequently quarantine it. If you do not see the message within 10 minutes, check your spam, junk, and promotions folders. Requests that never get verified are silently dropped.
Optional: Disable Behavioral Advertising
While you are in the 6sense privacy portal, take one extra step to limit downstream ad targeting:
- Navigate to the "Preferences" section in the privacy portal
- Find the "Behavioral Advertising" toggle
- Turn it off to stop 6sense from using your data for targeted advertising across their partner network
This does not delete your record, but it prevents 6sense from using your behavioral signals to serve you targeted ads.
Alternative Ways to Opt Out (Email and Mail)
If the web portal is glitching or you want a paper trail through more than one channel, 6sense also accepts opt-out requests through these routes:
- Email: privacy@6sense.com — include your full name, work email, employer, and a clear statement requesting opt-out and deletion under CCPA/CPRA (or the applicable law in your state).
- Mail: 6Sense Insights, Inc., 450 Mission Street, Suite 201, San Francisco, CA 94105 — send a signed letter with the same information and keep a copy.
What Happens After You Opt Out
6sense is required by California and Colorado law to process your request within 45 days (extendable to 90 in complex cases). In practice, most opt-outs complete within 2–3 weeks. You will not receive a confirmation email in most cases — the response is silent, and the way you verify it worked is by not receiving new cold outreach that traces back to 6sense-sourced lists.
Your Record Will Come Back
6sense continuously ingests data from LinkedIn scrapers, business email databases, tracking pixels, event registration lists, and paid third-party data feeds. Even after a clean opt-out, your profile can reappear within a few months if any of those upstream sources refresh. This is why one-time opt-outs are not a long-term solution — you need continuous monitoring.
Why Opting Out of 6sense Matters
- Cold outreach avalanche: Once 6sense flags you as "in-market," every sales team using their platform is queued to contact you.
- Silent surveillance: Your content consumption and website visits are logged and attributed to you personally, with no notice.
- Professional profiling: Your browsing behavior, content interests, and role are combined into a dossier sold to hundreds of B2B customers.
- Data laundering: Even seemingly harmless business data feeds into ecosystems where consumer and professional data mix.
Preventing Re-listing After Opting Out
- Block B2B tracking scripts: Use uBlock Origin or Privacy Badger with the EasyPrivacy filter list — this blocks 6sense's t.6sc.co and epsilon.6sense.com tracking beacons.
- Use a business-only email alias: Route work communications through an alias so the underlying address is not the one 6sense harvests.
- Audit your employer's stack: If your company uses 6sense internally, your data will be re-ingested through internal channels. Ask marketing or IT if a 6sense integration is active.
- Re-check every 90 days: Log back into the portal and re-submit if needed.
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Frequently Asked Questions
Is opting out of 6sense free?
Yes. 6sense is legally required under CCPA, CPRA, and Colorado Privacy Act to process opt-out and deletion requests at no cost. Do not pay any third party who claims to charge a fee specifically for a 6sense removal — the official process on 6sense.com is free.
How long does a 6sense opt-out take to process?
Legally, 6sense has up to 45 days (with a 45-day extension for complex requests). In practice, most opt-outs complete within 2–3 weeks. You typically will not receive a confirmation — the change is silent, and you verify it by no longer receiving 6sense-sourced cold outreach.
Does opting out of 6sense stop all B2B sales emails?
No. 6sense is one of dozens of B2B intent data platforms — ZoomInfo, Apollo, Cognism, Lusha, Clearbit, and Demandbase all keep separate databases with overlapping data. You need to opt out of each one individually, or use a service like PrivacyOn that submits removals across 100+ brokers automatically.
Will 6sense re-add my information after I opt out?
Yes, eventually. 6sense continuously ingests data from LinkedIn scrapers, business email databases, tracking pixels, and paid data feeds. Even a clean opt-out typically decays within 3–6 months as your record is re-created from upstream sources. This is why continuous monitoring is more effective than one-time opt-outs.
What if I never received the Ketch verification email?
Check your spam, junk, and quarantine folders first — the sender noreply@m.ketch.com is a common false positive for corporate email filters. If it truly did not arrive, request an admin to allowlist ketch.com, then re-submit the request. If you still get nothing, email privacy@6sense.com directly with your details.
Can I opt out of 6sense on behalf of a family member or employee?
You can only submit a request as an authorized agent if you have written authorization from that person. 6sense may ask for a signed authorization letter and proof of identity for the person you are acting on behalf of. For your own household, it is usually simpler to have each person submit their own request.