能否禁用SMS ID？咨询拦截短信发件人号码伪装的可行方案

Hey there, sorry to hear you got hit with that NatWest UK phishing text—spoofed sender numbers make these scams way too convincing, and it’s totally valid to be frustrated about how easy scammers can pull this off. Let’s break down your questions:

Can users disable sender ID hiding mechanisms via software? #

Short answer: You can’t fully disable the underlying mechanism that allows sender spoofing with just user-side software, because this happens at the network level (scammers use third-party SMS services that manipulate the sender ID field before the message reaches your carrier). But you can take steps to minimize exposure and block suspicious messages:

• Enable built-in spam filtering on your phone: Both Android (via Google Play Protect) and iOS have native spam detection that flags known scam numbers and suspicious message content.
• Use third-party security apps: Reputable apps focused on call/SMS blocking can crowdsource data on scam numbers and automatically intercept spoofed messages—just pick one from your official app store.
• Restrict messages to contacts only: Some phone systems let you set SMS filters to only accept messages from numbers in your contacts. This is effective but might block legitimate messages (like delivery alerts), so use it cautiously.

Can O2 UK assist with this? #

Absolutely—O2 has dedicated tools and support to help combat spam and spoofed messages:

• Report the phishing text: Forward the suspicious message to 7726 (a free UK-wide spam reporting service supported by all major carriers). O2 will use this to mark the sender as malicious and prevent it from reaching other users.
• Enable O2’s Call & Text Protect: This free service automatically blocks known scam calls and texts, and flags suspicious numbers. You can turn it on via your O2 account dashboard, the My O2 app, or by contacting O2 support directly.
• Reach out to O2 customer support: If you want more personalized help, call O2’s support line or use their online chat. They can walk you through setting up additional protections, explain how their spam detection works, and even advise on next steps if you’re worried about potential account risks.

Extra Tips to Stay Safe #

• Never click links or reply to unsolicited texts asking for personal info (banks like NatWest will never ask for your PIN, password, or full account details via SMS).
• If you’re unsure about a message’s legitimacy, call the bank’s official customer number (found on their website or your physical bank card—never use the number in the text).

内容的提问来源于stack exchange，提问作者seagull