A little-known rule regarding phone numbers could put mobile users at risk of being hacked, receiving nuisance calls, or even having their phone disconnected, as highlighted by consumer group Which?. The concern stems from the recycling of old phone numbers, where existing numbers are reassigned to new users. This practice poses various risks, as many new numbers issued by telecoms companies in the UK are recycled from previous owners due to a limited pool of 11-digit combinations.
According to Which?, their research involving over 15,000 participants revealed that 11% of individuals had changed their mobile numbers in the past ten years. However, only 50% had updated their number with all relevant organisations and online accounts, with a worrying 10% admitting they had not updated it anywhere. This oversight could compromise online identities and accounts, especially since sensitive information is often transmitted via text messages or used for authentication purposes.
Reports showed that 7% of respondents had experienced issues due to the deactivation or reassignment of a previous owner’s phone number. Problems included receiving calls and messages intended for the former user, as well as unwarranted contact from debt collectors or individuals seeking to purchase illicit substances. Which? emphasised the need for improved communication from providers about the risks associated with recycled numbers and called for further investigation into the consumer issues arising from this practice.
Lisa Barber, the tech editor at Which?, underscored the significant problems recycled phone numbers can cause for both the previous and new owners. From the threat of hacking to losing access to emergency services or receiving distressing unsolicited messages, the risks are substantial. Which? urged Ofcom to address these concerns and enhance communication to consumers about the potential drawbacks of recycled numbers.
Mobile phone users are advised to stay vigilant and ensure their contact details are updated with relevant organisations to mitigate the risks associated with recycled phone numbers. In a digital age where personal information is increasingly valuable, safeguarding one’s phone number becomes crucial to protecting online security and privacy.