Authorities in Mexico and Colombia have issued warnings regarding a surge in fraud involving QR codes and online scams. The Mexico City Security Secretariat and the national police have alerted the public about criminals using QR codes to steal personal and banking information. Recommendations have been provided to avoid falling victim to these scams, including being cautious with messages received via platforms like WhatsApp, where identity theft is prevalent. The Colombian authorities have also shared advice on preventing credit card fraud amid similar concerns. The FBI has emphasized the importance of vigilance for small businesses against various types of fraud, including phishing and invoice scams, while promoting safe online practices to protect sensitive data.