SMS has faced several challenges in the past decade, such as spam, fraud, security, and regulation. Spam messages are unwanted and unsolicited messages that often contain malicious links, phishing attempts, or advertising. Fraud messages are messages that try to trick users into revealing personal or financial information, or paying for premium services. Security issues include the lack of encryption and authentication for SMS messages, which makes them vulnerable to interception, spoofing, or manipulation. Regulation issues include the varying laws and policies that govern SMS across different countries and regions, which can affect the cost, quality, and availability of SMS services. Despite these challenges, SMS also has some opportunities to remain relevant and useful in the mobile communication landscape. For example, SMS can leverage its ubiquity and simplicity to provide critical services, such as emergency alerts, verification codes, reminders, notifications, and surveys. SMS can also integrate with other platforms and technologies, such as chatbots, artificial intelligence, and the internet of things, to create more interactive and engaging experiences for users.