Authorities in Brazil are investigating an unauthorised alert message sent to mobile phones in parts of the country, according to reports. The alert was transmitted without authorisation, prompting suspicion that the incident may be the result of a hacking attack. Both outlets describe the event as an unauthorised alert reaching mobile users across multiple areas, rather than a limited or locally authorised notice. At the time of reporting, officials are treating the situation as a suspected cyber incident and are working to determine how the alert was triggered and who was responsible. The reports do not provide further details on the content of the alert, the exact regions affected, the number of people reached, or whether any systems were compromised beyond the alert transmission. The focus remains on verifying the origin of the alert and assessing what security measures may have been bypassed. Authorities have not been quoted in the provided summaries with conclusions beyond the ongoing investigation into a potential hacking attempt.