Editing Spamming (section)

===Mobile phone===
{{Main|Mobile phone spam}}

Mobile phone spam is directed at the [[text messaging]] service of a [[mobile phone]]. This can be especially irritating to customers not only for the inconvenience, but also because of the fee they may be charged per text message received in some markets.
To comply with CAN-SPAM regulations in the US, SMS messages now must provide options of HELP and STOP, the latter to end communication with the advertiser via SMS altogether.

Despite the high number of phone users, there has not been so much phone spam, because there is a charge for sending SMS. Recently, there are also observations of mobile phone spam delivered via browser push notifications. These can be a result of allowing websites which are malicious or delivering malicious ads to send a user notifications.<ref>{{cite web |url=https://www.lotsofways.de/en/is-this-website-allowed-to-send-you-notificationsno-caution-is-advised/ |title=Is this website allowed to send you notifications? NO! - caution is advised. |publisher=lotsofways.de |date=2018-10-18 |access-date=2018-10-29 |archive-date=2019-03-23 |archive-url=https://web.archive.org/web/20190323132346/https://www.lotsofways.de/en/is-this-website-allowed-to-send-you-notificationsno-caution-is-advised/ |url-status=live }}</ref>