DMCA & Abuse Policy

Per the Online Copyright Infringement Liability Limitation Act (17 U.S.C. § 512(c)), Linkdown has designated the following agent to receive notifications of claimed copyright infringement:

• Email: abuse@0451software.com
• Subject line: please begin the subject with DMCA Notice: (or DMCA Counter-Notice:) so we can route the message to the on-call reviewer.
• Postal address (US Designated Agent): mailed address available on request to abuse@0451software.com. We will file the corresponding registration with the U.S. Copyright Office in due course; the in-process listing is sufficient to satisfy § 512(c)(2) pending publication.

To be valid under the DMCA, your notice must include all six of the following elements. Incomplete notices will be acknowledged but cannot be acted upon until complete:

1. Signature. A physical or electronic signature of the copyright owner, or of a person authorized to act on behalf of the owner, of an exclusive right that is allegedly infringed.
2. Identification of the copyrighted work. A description of the copyrighted work claimed to have been infringed, or — if multiple works are covered by a single notice — a representative list of such works on the site.
3. URL of the infringing material on lnkdwn.com. The full share-link URL (for example https://lnkdwn.com/d/abc123…) where the allegedly infringing material is located. We cannot act on a description alone — we need the URL so we can locate and review the specific content. Please include the deck ID and share token if you have them.
4. Contact information. Your full legal name, mailing address, telephone number, and email address at which you can be reached. Anonymous or pseudonymous notices are not actionable under § 512.
5. Good-faith statement. A statement that you have a good-faith belief that use of the material in the manner complained of is not authorized by the copyright owner, its agent, or the law (e.g. fair use).
6. Accuracy and authority statement, under penalty of perjury. A statement that the information in the notification is accurate, and under penalty of perjury, that you are authorized to act on behalf of the owner of the exclusive right that is allegedly infringed. Per 17 U.S.C. § 512(f), any person who knowingly materially misrepresents that material is infringing is liable for any damages incurred as a result of the removal or disabling of access to that material.

See 17 U.S.C. § 512(c)(3) for the statutory text.

We aim to act on a complete notice within 24 hours of receipt. This is a target, not a guarantee: complex cases (e.g. fair-use defenses raised by the uploader, jurisdiction questions, multi-work batch notices) may take longer. In every case we will:

• Acknowledge receipt of your notice within one business day.
• Review the URL you identified and either disable access to the material, or send you a written explanation of why we declined to act.
• Notify the uploader of the affected deck (with your identifying information redacted) so they can file a counter-notice if they believe the takedown was in error.

We do not act on incomplete notices; if your notice is missing one or more of the six elements above, we will reply within one business day identifying what is missing and wait for the complete version before the 24-hour clock starts.

If you believe content you uploaded was removed (or disabled) in error or misidentification, you may send us a counter-notice. The counter-notice must include (per § 512(g)(3)):

1. A physical or electronic signature of the subscriber (you, the uploader).
2. Identification of the material that has been removed or to which access has been disabled, and the location at which the material appeared before it was removed or access disabled (the share-link URL).
3. A statement under penalty of perjury that the subscriber has a good-faith belief that the material was removed or disabled as a result of mistake or misidentification.
4. The subscriber’s name, address, telephone number, and a statement that the subscriber consents to the jurisdiction of the federal district court for the address’s judicial district (or, if outside the US, any judicial district in which the service provider may be found), and that the subscriber will accept service of process from the person who provided the original notification or an agent of that person.

Send the counter-notice to the same address (abuse@0451software.com) with a subject line starting with DMCA Counter-Notice:.

After we receive a valid counter-notice, § 512(g)(2) requires us to forward it to the original complainant within a reasonable time. The complainant then has 10 business days to notify us that they have filed a court action seeking to restrain the subscriber from engaging in infringing activity on our system. If we do not receive that notice within 10 business days, we will restore the removed material and cease disabling access to it.

Linkdown accounts that accumulate three (3) or more validated DMCA strikes are subject to termination. The strike count is maintained per user (per Clerk user ID) across all decks and share-links associated with that account.

A “validated” strike is a takedown that we performed in response to a DMCA notice that included all six § 512(c)(3) elements and that we did not subsequently reverse in response to a valid counter-notice. We do not count received-but-declined notices, frivolous or bad-faith notices, or notices that the uploader successfully rebutted with a counter-notice that we honored.

Account termination means: all decks owned by the account are deleted, all share links 404, the Clerk account is deleted per our standard data-deletion flow, and the user is not permitted to create a new account on lnkdwn.com. Reasonable efforts will be made to notify the user by email before termination, but termination may be immediate in cases of clear, willful, or large-scale infringement.

This policy is consistent with § 512(i)(1)(A) (the “repeat-infringer” requirement of the safe harbor). We do not maintain a public list of terminated accounts.

Reports of spam, phishing, malware, harassment, doxxing, non-consensual intimate imagery (NCII), CSAM, or other abuse that is not primarily a copyright concern should also be sent to abuse@0451software.com. Please use the subject line Abuse Report: followed by a short tag (e.g. phishing, harassment, csam) and include:

• The share-link URL of the offending content.
• Your relationship to the report (target, witness, reporter).
• A short description of what is wrong (e.g. “this link is being used to phish Stripe credentials”, “this deck contains non-consensual intimate imagery of me”).

For credible reports of illegal content (CSAM, NCII, imminent threats of violence, terrorism) we will act as fast as the DMCA path — typically within hours, not days — and we will preserve any evidence needed by law enforcement.

For everything else (what data we collect and how we handle it; the rules of using the service; account deletion; payments; governing law), see:

• /privacy — Privacy Policy.
• /terms — Terms of Service.

All DMCA notices and abuse reports: abuse@0451software.com
Privacy / data-deletion requests: privacy@0451software.com
General legal questions: legal@0451software.com
Security issues: security@0451software.com (PGP key on /.well-known/security.txt)