Alerts customers actually trust.
An RCS fraud alert is a transaction alert or passcode sent from a bank’s verified sender, with the name, logo and checkmark drawn from the approved agent record and a one-tap confirm or freeze action, which SimplyRCS sends on US carriers with automatic SMS fallback. The whole point of a fraud alert is that the customer believes it. Send transaction alerts and 2FA codes from your verified brand, name, logo, checkmark, so customers know it’s really you, and verify or freeze in one tap. Branded over RCS, delivered everywhere with automatic SMS fallback.
- Verified sender
- One-tap verify or freeze
- Anti-phishing branding
- Auto SMS fallback
Fraud alertThe real fraud problem is the alert itself.
Customers have been trained to distrust security texts, because scammers send fake ones constantly. A plain SMS that says “Suspicious charge, reply YES or call this number” looks identical whether it’s from a real bank or a phishing ring spoofing one. So real alerts get ignored and fake ones get clicked. The fix is proof of identity: a SimplyRCS alert arrives from your verified brand, a registered sender with your name, logo, and a checkmark the customer can see, so a legitimate alert is visibly different from a spoofed one.
What a fraud alert should look like.
A trustworthy alert proves who it’s from, states exactly what happened, and gives a safe one-tap response, without ever asking the customer to call an unknown number or click a suspicious link. Verification is the whole job.
Branded passcodes beat anonymous ones.
The same trust problem hits two-factor codes. A passcode from an unknown short code is indistinguishable from a phishing attempt harvesting your login. A SimplyRCS one-time passcode arrives from your verified brand, so customers know the code is legitimately yours, and over RCS it can include a one-tap “this wasn’t me” path to flag an unexpected login instantly.
- Branded OTP: codes arrive from your verified sender, not an anonymous number
- One-tap auto-fill (where supported): reduce friction at login
- "It wasn’t me" action: let customers flag a suspicious login attempt in one tap
- Guaranteed delivery: falls back to SMS so codes always arrive in time
2FA passcodeVerified alerts in five steps.
We register your verified RCS sender and handle carrier vetting, so alerts carry your name, logo, and checkmark: the foundation of the whole use case. Compliance and identity are handled by our team.
When the whole job is trust, verification wins.
For most use cases, RCS is a better experience. For fraud alerts and 2FA, it’s a better defense. Plain SMS can’t prove who sent it, which is precisely why phishing works. A verified sender is visibly, structurally distinct from a spoof.
Kestrel BankVerified businessWhat a fraud-alert programme changed, with the numbers.
One published case with before-and-after figures, from Signalmash, the company behind SimplyRCS. Those alerts were SMS. A verified RCS sender adds the proof of identity on top of the same programme.
| What was measured | Before | With real-time text alerts | Source |
|---|---|---|---|
| Fraudulent transaction volume | $2.1M in one quarter | 61% lower; $14.3M in fraud prevented over six months | Signalmash case study, 11 Oct 2025 |
| Alerts sent and resolved | Not published | 14,000 alerts a day; 89% resolved by text within two minutes | Signalmash case study, 11 Oct 2025 |
| Customer response time | Not published | 47 seconds on average; 8 to 12 minutes at 3 AM | Signalmash case study, 11 Oct 2025 |
| Account-takeover attempts | Not published | 44% fewer | Signalmash case study, 11 Oct 2025 |
| Calls about frozen accounts | Not published | 68% fewer, and 73% fewer complaints about legitimate transactions being flagged | Signalmash case study, 11 Oct 2025 |
A digital bank with 280,000 customers; figures as reported by Signalmash for the six months after launch. 67% of the fraud it caught happened outside business hours, which is the case for an automated alert over a call-back. What RCS adds is the verified sender, so the alert that asks a customer to act is visibly the bank’s. RCS-specific financial results, with sources, are on RCS for financial services.
Built for anyone protecting an account.
Any business guarding accounts, payments, or logins benefits, and the stakes are highest in regulated industries.
Banks & credit unions
Transaction alerts, card controls, and login verification.
What a legitimate bank fraud alert text looks like.
The same five marks a customer should look for are the ones a bank should design in.
- It comes from a verified sender. Over RCS the bank’s name, logo and checkmark are drawn by the phone from the approved agent record, not typed into the message. A fraud alert from a bare ten-digit number is, at best, a bank that has not moved to RCS yet.
- It names the specifics. The merchant, the amount and the last four digits of the card: “We blocked a $487 charge at a merchant in Miami on the card ending 4421.” Vague alerts about “suspicious activity” are the phishing pattern.
- It asks a yes-or-no question. Yes, that was me and No, freeze my card as buttons, or reply keywords on SMS. It does not ask you to click a link and log in.
- It never asks for a code, a password or a full card number. A one-time passcode is something a bank sends you, never something it asks you to send back. Any message that does is fraud, whatever name it shows.
- It comes from the same sender every time. Alerts, passcodes and statements from one bank arrive in one thread under one identity. A second thread claiming to be the same bank is the tell.
For a bank, those five marks are the design brief, and the first one is the only piece that cannot be built on SMS. The rest of this page is how the verified sender and the one-tap response are set up; RCS for financial services covers passcodes, payments and statements on the same agent.
Fraud alert & 2FA questions.
What should a fraud alert text message say?
The amount, the merchant type, the last four digits of the card and the time, from a sender the customer can verify, with a yes-or-no action and nothing to log into. A legitimate fraud alert text message never asks for a code, a password, or a call to an unfamiliar number. Over RCS the name, logo and checkmark are drawn from the approved sender record, so the alert proves who sent it.
How do banks send fraud alerts by text?
Banks send fraud alerts by texting customers when a suspicious transaction is detected, asking them to verify or decline it. With SimplyRCS, those alerts go out from a verified, branded sender: name, logo, and checkmark, and let customers verify the charge or freeze the card in one tap, with automatic SMS fallback so the alert always arrives.
Are SMS fraud alerts and 2FA codes secure?
Plain SMS alerts and codes are functional but cannot prove who sent them, which is why phishing attacks imitate them so effectively. RCS improves this by sending from a verified, registered brand the customer can visibly distinguish from a spoof. SimplyRCS uses verified RCS where supported and falls back to SMS, pairing trust with guaranteed delivery.
How does RCS help stop SMS phishing?
RCS messages come from a verified, registered sender with your brand name, logo, and a checkmark: signals a scammer using a spoofed SMS number cannot easily replicate. This lets customers tell a legitimate alert from a phishing attempt at a glance, so real alerts get trusted and fake ones get ignored.
What should a fraud alert text say?
A trustworthy fraud alert proves who it is from (verified branding), states the specifics (amount, last four digits, merchant, time), and offers a safe one-tap response, verify or freeze, without asking the customer to call an unknown number or click a link. For example: "We blocked a $487 charge on your card ending in 4421. Was this you? [Yes] [No, freeze card]."
Can customers verify or freeze a card from the text?
Yes. Over RCS, SimplyRCS alerts include tappable buttons: confirming the charge clears the flag, and freezing triggers your card-control action and routes the customer to a specialist in the Inbox. On non-RCS devices, the alert falls back to SMS with a reply-to-respond instruction.
Can I send branded 2FA or one-time passcodes?
Yes. SimplyRCS sends one-time passcodes from your verified brand instead of an anonymous short code, so customers know the code is legitimately yours. Over RCS, codes can include a one-tap "it wasn’t me" action to flag suspicious logins, and they fall back to SMS to guarantee timely delivery.
Do fraud alerts work on iPhone and Android?
Yes. Verified RCS alerts reach iPhones (iOS 18.1+) and Androids (Google Messages). Because security messages must always arrive, SimplyRCS falls back to SMS automatically on any device that cannot receive RCS, so codes and alerts are never delayed.
Is sending fraud alerts and 2FA compliant?
Transactional security messages like fraud alerts and 2FA can be sent with appropriate consent and content practices. SimplyRCS provides verified senders, audit logging of every send and response, and per-channel consent tracking. Regulated businesses should review the trust center and the financial-services industry page for specifics.
What is an SMS bank message alert, and how is an RCS one different?
An SMS bank alert is a plain text from a short code or ten-digit number telling you about a transaction, a balance or a login. It works, but it looks identical to the phishing texts that imitate it, and the reply is a keyword. An RCS bank alert carries the same information from the bank’s verified sender, with its name, logo and checkmark drawn by the phone from the approved record, and the response is a button: Yes, that was me, or No, freeze my card. Where a phone cannot take RCS, SimplyRCS delivers the SMS version automatically.
What results do real-time fraud alert texts get?
The one published programme with before-and-after numbers is a digital bank of 280,000 customers that Signalmash, the company behind SimplyRCS, moved to real-time text alerts: fraudulent transaction volume fell 61%, $14.3 million in fraud was prevented over six months, and 89% of its 14,000 daily alerts were resolved by text within two minutes. Those alerts were SMS. A verified RCS sender adds proof of who sent the alert, which is the one thing SMS cannot provide.
Make every alert provably yours.
Book a demo and we’ll send a verified fraud alert and 2FA code to your phone: branded, one-tap, unmistakably real. Or start free with a sender ID test.