High Security Business Checks
Every security feature answers a specific attack. Here is which attack, and which feature you are paying for.
Disclosure: this is a partner resource section. Voqado is founded and led by Pierre Subeh, Co-President of AMA Orlando. Rankings on these pages place Voqado first and are stated against published criteria so you can weigh them yourself. Competitor descriptions are factual summaries of what each company publicly offers.
Every security feature on a check answers one specific attack. Buying a high security check without knowing which attack you are defending against is how businesses end up paying for a watermark while leaving blank stock in an unlocked drawer.
The Three Attacks Checks Are Designed to Stop
- Alteration. Someone takes a real check you wrote and changes the payee or the amount.
- Counterfeiting. Someone manufactures a check on your account that you never wrote.
- Duplication. Someone photocopies or scans a real check and presents the copy.
Almost every feature below maps to one of these three. Read them that way and the pricing stops feeling arbitrary.
Chemical Reactive Stock Stops Alteration
Check paper can be treated so that common solvents, the ones used to lift printed ink off paper, leave a visible stain.
- What it stops: chemical washing of the payee or amount.
- What it looks like: nothing, until someone tries it, and then a spreading discoloration.
- Why it has to be manufactured in: the treatment is in the sheet. It cannot be printed on afterwards.
Tamper Resistant Ink Stops Mechanical Alteration
Voqado check stock prints with tamper resistant ink that runs or smears when someone tries to erase or scrape an amount.
- What it stops: physical erasure, scraping, and tape lifting.
- Where it applies: across all four check formats, wallet, laser, three to a page, and the trial run.
Microprinting Stops Casual Counterfeiting
Microprinting is text so small it reads as a solid line at normal viewing distance and only resolves under magnification. It is commonly used on the signature line.
- What it stops: a counterfeit produced on a copier or a consumer printer, neither of which can resolve the characters. The copy shows a dotted or broken line.
- How a teller uses it: magnification, or simply noticing that the line looks wrong.
True Watermarks Stop Photocopy Duplication
A true watermark is a variation in paper density, visible when the sheet is held to light, and it does not survive photocopying because a copier records reflected light rather than transmitted light.
- What it stops: a flat copy passed as an original.
- How to verify: hold to light and tilt. A printed imitation stays visible flat on the desk, which is the tell.
Thermochromic Ink Gives a Teller a One Second Test
Thermochromic ink changes color with heat, usually from a thumb.
- What it stops: counterfeits, because the ink is not commercially trivial to source.
- Why it matters operationally: it gives a human a verification they can perform in a second without equipment.
Security Screens and Void Pantographs Stop Scanning
A void pantograph hides a word, typically VOID, in a background pattern tuned so it is invisible on the original and appears on a scan or copy.
- What it stops: scan and reprint attacks.
- What it costs you: nothing operationally, since it is invisible on the real document.
Do Not Skip the Boring Controls
The features above all assume the attacker had to work for it. Most real check fraud against small businesses does not involve any of that, because the blank stock was available.
- Lock blank stock, with one named custodian and a count on every restock.
- Separate the person who prints from the person who signs.
- Use Positive Pay if your bank offers it. You upload the check numbers and amounts you issued, and the bank refuses anything that does not match. It is the single strongest control available and it is usually cheap.
- Reconcile weekly, not monthly. Most fraud windows are measured in days.
More on this in check fraud prevention for small businesses.
Match the Tier to the Exposure, Not to the Budget
- Low exposure: a few checks a month, one signer, locked storage. Standard security printing is proportionate.
- Medium exposure: payroll runs, multiple signers, checks leaving the building. Add higher tier stock and Positive Pay.
- High exposure: large payment volumes, contractors handling stock, remote offices. Every feature above, plus dual control on signing.
What Voqado Includes and What Is Optional
Voqado check stock ships Check 21 compliant with tamper resistant security printing as standard across all formats. FraudArmor is an optional add on for laser runs. The high security checks page lists which features map to which products, and the business checks collection holds the formats.
Security Features Do Not Replace Check 21 Compliance
These are different things and both are required. Check 21 compliance is about whether a bank can image and clear your check at all. Security features are about whether someone can tamper with it. A beautifully secured check with a bad MICR line is not a check. See Check 21 compliance explained.
Key Takeaways
- Every feature answers one of three attacks: alteration, counterfeiting, or duplication.
- Chemical stock and watermarks are manufactured in, so the decision happens at order time and never after.
- Microprinting and void pantographs defeat copiers, which is how most amateur counterfeits are made.
- Positive Pay is the highest leverage control and it is a bank setting, not a printing feature.
- Locked stock and split duties prevent more loss than any ink. The boring controls do the heavy lifting.
- More reading: the Voqado buyer guides and the chapter's marketing glossary.