SMS spoofing is a relatively new technology which uses the Short Message Service (SMS), available on most mobile phones and personal digital assistants, to set who the message appears to come from by replacing the originating mobile number (Sender ID) with alphanumeric text. Spoofing has both legitimate uses (setting the company name from which the message is being sent, setting your own mobile number, or a product name) and illegitimate uses (such as impersonating another person, company, product).
About SMS Spoofing and How it’s Done:
SMS Spoofing occurs when a sender manipulates address information. Often it is done to impersonate a user that has roamed onto a foreign network and is submitting messages to the home network. Frequently, these messages are addressed to destinations outside the home network – with the home SMSC essentially being “hijacked” to send messages to other networks.
The impact of this activity is threefold:
- The home network can incur termination charges caused by the delivery of these messages to interconnect partners. These messages can be of concern to interconnect partners. Their customers may complain about being spammed, or the content of the messages may be politically sensitive. Interconnect partners may threaten to cut off the home network unless a remedy is implemented. Home subscribers will be unable to send messages to these networks.
- While fraudsters normally used spoofed-identities to send messages, there is a risk that these identities may match those of real home subscribers. The risk, therefore, emerges, those genuine subscribers may be billed for roaming messages they did not send. If this situation occurs, the integrity of the home operator’s billing process may be compromised, with potentially huge impact on the brand.
The legitimate use cases for SMS spoofing include:
- A sender transmits an SMS message from an online computer network for lower more competitive pricing, and for the ease of data entry from a full-size console. They must spoof their own number to properly find themselves.
- A sender does not have a mobile phone, and they need to send an SMS from a number that they have provided the receiver in advance to activate an account.
- A sender adopts the default network gateway identifier provided by an online service, to send an anonymous SMS, not specifying the number of their own choosing.
- A third-party sends a message to a virtual number, which then forwards (resend) the message to one or more recipients in such a way that the true originator address (rather than the virtual number) appears as the sender ID and the recipient(s) can reply, call, sort, save, or otherwise process the message in an expected way.
An SMS Spoofing attack is often first detected by an increase in the number of SMS errors met during a bill run. These errors are caused by the spoofed subscriber identities. Operators can respond by blocking different source addresses in their Gateway-MSCs, but fraudsters can change addresses easily to bypass these measures. If fraudsters move to using source addresses at a major interconnect partner, it may become unfeasible to block these addresses, due to the potential impact on normal interconnect services.
Sites That Offer Text Message Spoofing:
Below listed are some sites that have, or do, offer SMS spoofing services:
- Send Anonymous SMS:
- TxtEmNow: http://txtemnow.com
- Text For Free:
- TxtDrop: http://www.txtdrop.com
- SMS Anonymous (For Australians):
- SMS Spoofing:
- Spoof Card: http://www.spoofcard.com
- Spoof Texting:
- Fake My Text:
- The SMS Zone:
The Legality of SMS Spoofing:
The legality of SMS spoofing has been brought to our attention many times. In 2007, The UK premium rate regulator, PhonepayPlus (formerly ICSTIS) concluded a public consultation on anonymous SMS, where they stated they were not averse to the operation of such services. However, in 2008 PhonePayPlus introduced new regulation covering anonymous SMS, requiring anonymous SMS service providers to send a follow-up message to the recipient stating that a spoofed SMS has been sent to them, and use a complaints helpline. It is illegal to send anonymous SMS messages in Australia. We have heard that many countries across Europe and Asia have actually passed laws making it illegal to spoof text messages. We are confident that text message spoofing is NOT illegal under any existing laws in the United States.
Note: – This guide is only for knowledge purpose and shouldn’t be used for any illegal activities as we are not responsible for anything happens with this.
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