Banks, credit unions, and wealth managers have invested heavily in digital: secure email, portals, e-signatures, and mobile apps. In the U.S., electronic signatures are legally valid under the ESIGN Act and UETA, which put e-signatures on roughly the same footing as wet-ink signatures when certain conditions are met.

So it’s tempting to think, “Why would we ever need a physical courier again?”

The answer is that digital isn’t always safer, cheaper, or more compliant. Between sophisticated email attacks, complex documentation requirements, and customer trust issues, there are still many situations where moving an actual envelope by a trusted courier is the smarter choice.

In this article, we’ll look at where email is enough, where it falls short, and how a modern courier partner like Express Courier Services fits into a financial institution’s risk and operations strategy.

The Limits of “All Digital” in Financial Services

Financial services is one of the most targeted industries for phishing and email-borne attacks. Recent reports show that finance consistently ranks at or near the top for phishing attempts and email threats, sometimes representing more than a quarter of all phishing activity.

Even when email is encrypted and authenticated, risks remain:

• Business email compromise (BEC) where attackers trick staff into changing payment or wire instructions.

• Compromised accounts that silently forward or alter sensitive documents.

• Ransomware and broader cyber incidents that make digital systems temporarily unavailable.

At the same time, paper and physical mail still play important roles in trust and communication. Studies on consumer behavior in banking have found that paper bills and statements often reinforce trust and perceived security, even when digital channels are available. Example study on paper vs online statements.

So while portals and secure email are critical, they don’t fully replace secure physical document movement—especially for high-stakes financial processes.

When a Physical Courier Still Matters More Than Email

1. Original, Negotiable, and High-Stakes Documents

Certain documents still need to exist—and travel—as originals:

• Loan and mortgage packages where the original paper file can be central in litigation or workouts.

• Negotiable instruments and cash-equivalent items such as cashier’s checks, drafts, and collateral packets that can’t simply be “reprinted” without raising risk.

• Wet-ink signature documents that are still required by counterparties or specific state/transaction types, even though ESIGN and UETA allow e-signatures in most cases.

In these scenarios, a structured courier program ensures you have a clear chain of custody instead of informal handoffs. Chain of custody is the chronological documentation that shows who had custody of an item, when, and under what conditions.

With a specialist like Express Courier Services’ Financial & Banking solutions, those high-value documents move in sealed containers, with logged scans and signatures at every handoff—far more robust than “someone drove it over from the branch.”

2. Branch, Vault, and Lockbox Runs

Even in a heavily digital environment, banks still move physical deposits and remittances every day:

• Branch deposit bags

• Lockbox contents

• Card/PIN kits

• Important internal packets for operations or treasury

Lockbox services, for example, are explicitly designed to expedite the collection of paper-based payments and get them to bank processing centers quickly; the bank typically couriers the day’s deposits from the lockbox to processing. Lockbox overview – Investopedia and Trustpair explainer.

Route-based courier programs—like those offered by Express Courier Services—turn these movements into planned, auditable runs with:

• Scheduled pickups and deliveries

• GPS-tracked routes and live ETAs

• Proof of delivery attached to each bag or pouch

Email can’t move physical deposits. A courier network can, and it can do so in a way that’s designed for audit and timeliness.

3. Cyber Risk, Fraud, and “Out-of-Band” Communication

Financial institutions are increasingly dealing with AI-enhanced phishing, deepfakes, and targeted email attacks, which raise the stakes for purely digital workflows. Recent analysis shows that financial services are among the most targeted sectors for phishing and AI-powered cyberattacks. UpGuard – cyber threats in financial services and ABA Banking Journal on phishing.

For high-risk actions—such as large internal transfers, changes to settlement instructions, or sensitive board communications—some institutions intentionally use out-of-band channels:

• Physical courier delivery of board packs, strategic documents, or audit materials

• Hand-delivered instructions that must be acknowledged in person

• Courier-transported offline records or backup media

This complements cyber defenses by reducing reliance on channels that attackers aggressively target.

With a partner whose tech stack includes real-time tracking and reporting—like the platform described on Express Courier Services’ Technology & Tracking page—your risk team can see when those items were picked up, where they traveled, and when they were delivered.

4. Regulatory, Audit, and Customer-Trust Moments

Digital statements, disclosures, and e-signatures are legally valid and widely accepted, but paper still carries unique value:

• Research has found that the presence of paper bills and statements can enhance feelings of trust and security among banking customers.

• Regulators often still expect or require physical notices in certain remediation or breach scenarios.

That’s why physical mail and couriered packets continue to be important for:

• Regulator and auditor packages

• High-value client communications (institutional and HNW)

• Remediation or incident notifications where physical letters are recommended or required

When these are moved through a structured courier program instead of standard mail or ad-hoc staff runs, institutions gain predictable timing, better tracking, and cleaner documentation.

What a Modern Courier Program Looks Like for Financial Institutions

A modern financial courier program—especially with a specialist like Express Courier Services—looks more like a mini logistics network than a “driver with a van”:

• Secure chain-of-custody protocols for deposit bags, document pouches, and kits, aligned with evidence-handling best practices.

• Route-based and on-demand courier services tailored to branches, lockbox operations, and operations centers.

• Technology and tracking that provide GPS visibility, ETA updates, and reporting.

• Industry-aware SOPs tuned for financial services, as outlined in ECS’s financial services & banking content.

This puts physical movement on the same professional footing as your digital channels: controlled, monitored, and designed for compliance.

How to Decide: Email, Portal, or Courier?

For each major document flow, ask:

1. What’s the impact if email is compromised or delayed?

2. Does an original paper document carry extra legal or evidentiary weight here?

3. Is there an explicit or implied regulatory expectation around physical notice or records?

4. Would a chain-of-custody log materially strengthen our position in a dispute, audit, or investigation?

If the answer to any of those is “yes,” that flow is a strong candidate for physical courier delivery instead of—or alongside—email.

Bringing It All Together

Email and digital tools transformed banking, but they didn’t eliminate the need for trusted physical movement of documents, deposits, and sensitive materials. Cyber threats, regulatory requirements, and customer expectations all point to the same conclusion:

There are still critical moments when a physical courier isn’t a luxury—it’s a control.

If your institution is reassessing how it handles sensitive document flows, branch deposits, or lockbox runs, it’s worth mapping where a structured courier program can reduce risk and improve operations.

You can:

• Explore Express Courier Services’ Financial & Banking courier solutions

• Review broader Courier Services across California

• Learn how real-time tracking works on the Technologies page

• Or start a conversation with the team via the Contact Us page

That way, email and portals handle what they’re best at—while a professional courier network quietly takes care of everything that still needs to move in the real world.