What Is Smishing (SMS Phishing)?

Smishing (SMS phishing) is a phishing attack delivered through text messages instead of email. A message appears to come from a bank, delivery courier, tax authority, or other trusted sender and asks the recipient to click a link to "verify" a delivery, payment, or account issue.

Smishing is effective partly because text messages feel more immediate and personal than email, and because mobile screens make it harder to inspect a link before tapping it.

Smishing campaigns scale cheaply across SMS and messaging platforms, and the malicious links are frequently rotated to new, previously unseen domains to evade carrier-level filtering and blacklists.

For telecommunications providers and messaging platforms, this makes link-level analysis — rather than sender-number reputation alone — an important part of stopping smishing before a customer reaches the fraudulent page.

DefenceNet can analyze URLs associated with SMS and other messaging channels, evaluating structural and brand-related signals to identify malicious destinations even when the domain has not previously been reported.

For telecommunications providers and messaging platforms, this capability can be integrated into existing security workflows to flag smishing links as part of the message pipeline. The exact implementation depends on the network, messaging architecture, and regulatory requirements.