RCS Security: Encryption, Fraud Protection, and Verification

Shahzad_Ismail — Mon, 27 Jul 2026 09:08:27 GMT

RCS for Business offers a modernized, verified, branded, and secure messaging experience compared to traditional SMS. Here is a clear overview of how RCS secures messages and protects business-to-consumer communications.

Data Encryption

RCS for Business message are encrypted in transit and at rest, but not end-to-end. RCS employs multi-layered encryption to protect message data during transmission and storage:

Encryption in Transit: Messages sent via RCS are encrypted while traveling across network boundaries—specifically between the end-user’s device (both Android and iOS), Google’s servers, and messaging platforms (such as Sinch).

Encryption at Rest: Messages stored temporarily on server infrastructure (like Google’s servers) are encrypted while resting on the disk.

On-Device Storage: Messages stored locally on the recipient's phone rely on the device’s native operating system security (for example, device passcode, storage encryption).

Business Verification & Fraud Prevention

Unlike standard SMS, which is vulnerable to spoofing and "smishing" (SMS phishing), RCS for Business introduces strict identity verification features:

Security Feature	Benefit
Verified Sender Identity	Businesses undergo carrier and partner verification before sending messages, making it harder for scammers to impersonate trusted brands.
Branded Profile	Verified business profiles display company logos, brand colors, and official contact information directly within the messaging interface.
Trust Badges	Visual verification badges confirm to the recipient that the message originated from an authenticated business entity.

Summary

By combining in-transit and at-rest encryption with verified business identities, RCS significantly reduces the risk of phishing attacks, protects sensitive interaction data, and provides consumers with a trusted messaging channel.

Read the Sinch Blog post for the latest RCS Security information.

For more information on RCS, visit the Sinch RCS product page.

article RCS Security: Encryption, Fraud Protection, and Verification in RCS

RCS Security: Encryption, Fraud Protection, and Verification

Data Encryption

Business Verification & Fraud Prevention

Summary