Tamper Evident vs. Tamper Proof: What’s the Difference?

Intro
When choosing the right type of security label or seal, one of the most common questions is: What’s the difference between tamper evident and tamper proof? Though the terms are often used interchangeably, they refer to very different concepts. Understanding the distinction helps you choose the right protection for your products—and avoid costly mistakes.

What Does “Tamper Evident” Mean?

Tamper evident means that if someone tries to interfere with a product, packaging, or seal, there will be clear visual signs of the tampering. It doesn’t prevent access, but it reveals that tampering occurred.

Examples:

  • A label that leaves behind a “VOID” message when removed

  • A sticker that breaks or flakes apart when peeled

  • Tape that changes color if removed

This method is perfect for industries that require compliance, accountability, or consumer trust, such as:

  • Pharmaceuticals

  • Electronics

  • Food delivery

  • Logistics and shipping

What Does “Tamper Proof” Mean?

Tamper proof implies that a product or container is designed to physically prevent tampering altogether—or make it extremely difficult to do without destroying the item.

Examples:

  • Security screws on electronics that require special tools

  • Heat-shrink bands on bottle caps

  • Enclosures with lock-and-key access

While nothing is 100% tamper-proof, these solutions aim to block tampering altogether or make it clearly intentional and forceful.

Tamper proof designs are common in:

  • Industrial equipment

  • Sealed electronic devices

  • Access-controlled environments

Key Differences at a Glance

Feature

Tamper Evident

Tamper Proof

Purpose

Reveals tampering

Prevents or resists tampering

Removal

Leaves visible signs (e.g., VOID, break)

Extremely difficult without tools

Application

Stickers, seals, tapes

Hardware, special closures

Cost

Generally low

Often higher due to custom parts

Ideal Use Cases

Packaging, retail, shipping

Electronics, secure access areas

 

Which One Do You Need?

  • Use tamper evident labels if your goal is to:

    • Show whether a package has been opened

    • Comply with regulations

    • Build customer trust

    • Deter theft or unauthorized returns

  • Use tamper proof solutions if you need to:

    • Physically secure a product from entry

    • Prevent reuse or repurposing

    • Block access to sensitive components

In many cases, businesses use both together—for example, a tamper proof box sealed with a tamper evident label for full coverage.

Tamperco’s Options: Both Evident & Resistant

At Tamperco, we specialize in a wide range of tamper evident security solutions, including:

  • VOID labels

  • Destructible vinyl stickers

  • Custom barcode and logo seals

  • Tamper resistant security tapes

While “tamper proof” hardware is often built into products, our labels and seals are designed to work alongside those systems—adding an additional layer of visible, trustworthy protection.

Conclusion

Knowing the difference between tamper evident and tamper proof solutions helps you make smarter decisions about packaging, compliance, and product safety. Whether you want to show tampering or prevent it entirely, your security strategy starts with choosing the right tool for the job.

🛡️ Need help choosing the best fit for your product?
Explore our tamper evident label collection or request a free sample pack.