Time-Bomb Links: The Smartest Way to Share Time-Sensitive Marketing Documents

Some documents need to be accessible for exactly a defined period and inaccessible after that. A proposal that expires in 14 days. A competitive analysis shared for a specific decision meeting. A draft strategy accessible for feedback for 48 hours before the final version replaces it.

The traditional approach to this problem is manual: share the document, then remember to revoke access later. The problem is that "remember to revoke later" competes with everything else you have to do and often loses.

Time-bomb links solve this by making revocation automatic.

What Is a Time-Bomb Link?

A time-bomb link is a document-sharing URL with a built-in expiry. The link works during the configured window; after the expiry date or trigger, it returns an access-denied response. The expiry is set once, at the point of sharing, and then happens automatically without any action required.

The term "time-bomb" reflects the self-destruct mechanism: you set the timer when you share the document, and the access "detonates" — ends — when the timer runs out.

When to Use Time-Bomb Links

Proposals and quotes: Set to expire when the quoted pricing expires. If the client hasn't acted within your proposal window, the link stops working — creating a natural conversation trigger.

Confidential strategy documents: Share a competitive analysis or strategic recommendation for the window of the decision it informs. Once the decision is made, the access expires.

Draft documents: Share a draft for feedback during a specific review window. Once the review period ends, the link stops working and you deliver the final version fresh.

Sensitive frameworks: If you need to share a proprietary methodology with a client (as context, not as a deliverable), set a very short expiry — hours or days — so the access window is tightly bounded.

Post-engagement reference: Share a client's archive of deliverables with an access window of 6–12 months post-engagement. After that, it expires cleanly.

How Firma Implements Time-Bomb Sharing

Firma's time-bomb feature allows document expiry to be configured at the document level within a client portal. You set the expiry date when you add the document to the engagement, and Firma handles the rest — no reminder needed, no manual revocation step.

This is distinct from engagement-level wrap (which closes the entire portal). Document-level time-bombs let you set different expiry windows for different documents within the same engagement — so a sensitive competitive analysis can expire in 48 hours while the rest of the engagement's deliverables remain accessible for its full duration.

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Frequently Asked Questions

What is a time-bomb link in document sharing?

A time-bomb link is a document-sharing URL with a built-in expiry date or trigger. The link provides access during a specified window and automatically becomes inaccessible after the expiry without requiring manual revocation.

How do you create a time-bomb link for a Google Drive document?

Google Drive supports access expiry for named individual access in Business Standard plans and above. For link-based time-bomb sharing (where the URL itself expires rather than per-user access), use a purpose-built client portal like Firma that supports URL-level expiry configuration.

What is the difference between a time-bomb link and a regular expiring link?

The terms are often used interchangeably. "Time-bomb" typically implies a short, specific window tuned to the document's purpose (e.g., 48 hours for a draft review), while "expiring link" may refer to any link with an expiry date regardless of window length. Both provide automatic revocation without manual intervention.