The Missing Layer in SMS Fraud Prevention

By Eren Bahadir Pehlivan, Founder of ADORASEC

Haziran 2026

Fraud prevention has become one of the most heavily funded areas in financial services and public-facing digital services. Banks, payment providers, telecoms companies, delivery firms, healthcare providers and public authorities continue to invest in detection algorithms, transaction monitoring, customer warnings, two-factor authentication, scam filters and consumer education.

Those tools matter. They stop harm every day. And yet fraud remains large, adaptive and costly.

The figures often used to describe this problem come from different markets: the United States, the European Economic Area, Australia, the United Kingdom and many others. These examples do not mean the problem belongs to one country. They show a broader pattern: criminals move across channels, mimic trusted organisations and exploit the gap between institutional communication and user trust.

This is not a story of institutions doing nothing. It is a story of institutions fighting a structural problem with tools that often sit on top of the same vulnerable communication channels.

The channel nobody questions

When a message arrives on your phone claiming to be from a bank, delivery company, government service, healthcare provider or another trusted organisation, you face a difficult task.

You have to decide whether the sender is genuine.

That should not be your burden alone.

The problem is not that users lack intelligence or awareness. The problem is that SMS was never designed to prove institutional identity. The sender name displayed on a user’s phone is not, by itself, a reliable trust signal.

A message may appear to come from an institution. It may be genuine. It may be fraudulent. The user is often expected to decide under pressure, while the fraudster deliberately creates urgency, fear or confusion.

That is the weakness fraudsters exploit.

Why filters are necessary, but not sufficient

Scam filters and detection systems are valuable. They reduce exposure and prevent harm. Any serious fraud-prevention strategy should include them.

But filtering is still a reactive model. A filter works by assessing whether something looks suspicious. It depends on known patterns, risk signals, language, sender behaviour, links, device intelligence or user reporting. Fraudsters then adapt.

Even very good filters cannot turn an unverifiable sender into a verified one.

This matters because institutional impersonation is not only a message-content problem. It is a sender-trust problem.

If a legitimate institution and a fraudster can both appear in the same messaging environment, using similar urgency, similar branding and similar language, the user is forced to make a trust decision that the channel itself does not reliably support.

That is where the missing layer appears.

The question institutions should ask more directly

Much of the fraud-prevention conversation asks: how do we make SMS safer?

That is an important question, but it may not be enough.

A second question is needed: which institutional messages should stop relying on spoofable channels in the first place?

Not every message needs new infrastructure. SMS remains useful for low-risk, general communication. A marketing update, a routine reminder or a low-consequence service message may not require the same level of assurance.

But selected high-trust messages are different.

A fraud warning, account restriction notice, delivery redirection request, address-change confirmation, payment-risk alert, public-service instruction or healthcare appointment action can create real harm if impersonated.

Those messages need more than reach. They need sender accountability, user clarity and evidence.

The issue is not whether SMS should disappear. The issue is whether institutions should have a verified alternative for messages that should not depend on an unverifiable sender name, an unknown link or a stressed user’s judgment.

What a verified institutional channel should provide

A communication channel designed for institutional trust needs different properties from ordinary messaging.

It should require verified sender access. Institutions should be registered and approved before they can send through the channel.

It should restrict delivery to registered users. The channel should not be an open public gateway where any sender can present themselves as an institution.

It should create an audit record. Institutions should be able to evidence what was sent, when it was delivered, whether it was read and how the user responded.

It should support user clarity. A user should have a simple behavioural rule: important institutional messages can be checked in a verified place, rather than acted on through an unverifiable SMS.

It should use limited operational data. A trusted communication layer should not require bank credentials, card numbers, PINs, passwords or transaction data. It should process only what is needed for routing, delivery, response tracking and reporting.

These are not marketing claims. They are design choices.

A channel built this way does not eliminate all fraud. No responsible system should claim that. But it can materially reduce the opportunity for criminals to impersonate participating institutions within the verified route.

Why this matters now

Across markets, regulators, consumer-protection bodies and institutions are asking harder questions about fraud, accountability and digital trust. The details differ from country to country, but the principle is the same: communication routes that create confusion can become part of the risk.

In the United Kingdom, as one example, policy discussions around fraud, reimbursement and consumer outcomes make communication evidence increasingly relevant. But the underlying issue is not limited to the UK. Any market where genuine institutions and criminals can reach users through similar-looking open channels faces the same structural weakness.

If fraudsters benefit from anonymous or weakly accountable communication routes, one response is better detection inside those routes.

Another response is to create verified routes for the categories of communication where trust matters most.

Institutions need to know not just that they sent a message, but whether the customer received it, read it and responded. SMS was not built to provide that evidence. A verified institutional communication layer can.

Beyond detection: a new standard for trust

Fraud prevention does not need fewer filters, fewer warnings or less monitoring. It needs all of those things.

But it also needs a communication layer designed for trust.

The future of institutional fraud prevention should not rely only on asking users to identify fake messages inside channels that do not reliably verify the sender.

For selected high-trust messages, institutions should be able to say: this message is not asking you to trust a sender name in an SMS. It is available in a verified channel. The sender is known. The delivery is recorded. The response is auditable.

That is the missing layer in SMS fraud prevention.

ADORASEC is developing a verified institution-to-consumer communication layer designed to reduce reliance on spoofable SMS for selected high-trust messages. It supports verified institutional notifications, delivery/read/response evidence and simple user-facing trust signals.

For institutional, policy or pilot discussions: adorasec.com