Financial Institutions Standardize on Tamper-Evident Envelopes
Banks and insurers facing tightening document security compliance requirements are increasingly specifying validated tamper-evident kraft envelopes with documented seal integrity testing, rather than the standard plain envelopes that dominated financial correspondence when compliance scrutiny was less stringent in prior decades. This shift commands meaningfully higher material cost than conventional plain kraft given the enhanced seal and validation requirements involved. Suppliers report tamper-evident orders now outpacing plain correspondence orders across several major financial institution accounts tracked this cycle, a clear reversal from just a few years earlier across the category broadly. Readers tracking this shift may also follow the kraft packaging market, which MMA sizes at USD 9.2 billion in 2025, growing at 8.5% a year.
Market Impact: Drives roughly 8% of demand








