SaaS & Startups

SecureShare: encrypted file sharing with expiring links

AES-256 encrypted uploads, password-protected links and automatic expiry — file sharing that cleans up after itself.

Industry: SaaS & Startups
Platform: SaaS

Most file sharing is an afterthought: attachments too big for email get thrown at whichever service is nearest, live forever, and are protected by nothing but the length of the URL. SecureShare is our product for doing this properly. Every file is encrypted with AES-256 across upload, storage and download, links are unguessable and optionally password-protected, and everything expires — by default in a day for guests — so shared files stop existing instead of accumulating.

The challenge

The interesting engineering in file sharing is at the edges: multi-gigabyte uploads that must survive flaky connections, encryption that cannot cost a noticeable wait, links that must be secret without being unusable, and an expiry system that genuinely deletes — including from storage, not just from the listing. And because anonymous upload services attract abuse, the platform has to defend itself: malicious actors probing for open storage are a certainty, not a possibility.

Our strategy

Expiry is the product, not a quota trick. Making deletion the default state — one day for guests, custom windows for registered users — keeps the platform clean, bounds storage honestly and matches how sharing actually works: almost every shared file matters for a week at most. Security is layered rather than singular: AES-256 on the content, unguessable identifiers on the links, optional passwords on top, and IP tracking with malicious-address blocking underneath.

The solution

Uploads take multiple files up to 3GB each, encrypt with AES-256, and return a unique share link immediately. Senders can add a password and choose an expiry; recipients need nothing but the link. When the window closes the file is deleted automatically. Registered users get longer retention and up to 10GB of storage; guests can share in seconds with a one-day window and no account at all. Behind the scenes, abusive addresses are tracked and blocked before they become a problem.

Results

What changed

AES-256

encryption standard

Enterprise-grade by default

The same cipher across upload, storage and download for every file.
3GB

per file

Big transfers, no email limits

Multi-file uploads sized for real work, not attachments.
24h

guest expiry

Clean by default

Guest shares delete themselves in a day; registered users choose their window.
10GB

premium storage

Room when you need it

Registered accounts unlock custom expiry and persistent storage.

Key features

What we built

AES-256 throughout

Files are encrypted in transit, at rest and on download — not just on the wire.
Unguessable share links

Every upload gets a unique high-entropy URL that cannot be enumerated.
Optional link passwords

A second factor for sensitive files, set by the sender in one click.
Automatic expiry & deletion

Files stop existing when their window closes — storage included, not just the listing.
Multi-file uploads to 3GB

Large transfers that survive unstable connections.
Abuse protection

IP tracking and malicious-address blocking keep an anonymous service usable.

Interface

SecureShare upload screen on the desktop
SecureShare on a tablet
SecureShare on a phone

Frequently asked questions

Is SecureShare a client project or a VBRO product?

It is our own product — designed, built and operated by VBRO Technology.

How are files protected?

With AES-256 encryption through upload, storage and download, unguessable share links, and optional password protection on top. Malicious IPs are tracked and blocked.

What happens when a file expires?

It is deleted automatically — the stored object and its metadata together. Guest uploads expire after one day; registered users choose their own window.

How large can uploads be?

Up to 3GB per file, with multi-file uploads supported. Registered accounts get up to 10GB of storage with custom expiry.