Is it illegal to delete your own text messages?

According to the relevant laws and regulations that I understand, it is not illegal to delete your own text messages. As the sender and receiver of text messages, you have control over your text messages, including deleting, saving or forwarding them. However, it should be noted that if you delete text messages related to certain legal proceedings, litigation or regulatory investigations, this may affect your evidence preservation and liability in related events. Therefore, when dealing with legal-related issues, it is best to seek the advice of a professional attorney first.