Is it blackmail to threaten to pay back the money by SMS?

It is illegal to threaten others online. It is illegal to threaten others through network intimidation and infringe on their legitimate rights and interests, and they need to bear corresponding responsibilities. Those who constitute a crime also need to bear criminal responsibility. If you threaten or extort property through the internet, it may be suspected of extortion, insulting and slandering others on the internet, or it may constitute insult and slander. If the circumstances are serious, they shall be detained for not less than five days but not more than ten days, and may also be fined not more than 500 yuan. What is the duty of the police? 1. Prevent, stop and investigate illegal and criminal activities; 2. Maintain social order and stop acts that endanger social order; 3. Organize the implementation of fire control work and implement fire control supervision. Legal basis of Article 42 of the Law of People's Republic of China (PRC) on Public Security Administration Punishment: Article 42 of the Law of People's Republic of China (PRC) on Public Security Administration Punishment commits one of the following acts, and shall be detained for not more than five days or fined not more than 500 yuan; If the circumstances are serious, he shall be detained for not less than five days but not more than ten days, and may also be fined not more than 500 yuan: (1) writing threatening letters or threatening the personal safety of others by other means; (2) publicly insulting others or fabricating facts to slander others; (3) fabricating facts, falsely accusing and framing others, and attempting to subject others to criminal investigation or public security administration punishment; (4) Threatening, insulting, beating or retaliating against witnesses and their close relatives; (5) sending obscene, insulting, intimidating or other information for many times to interfere with the normal life of others; (six) voyeurism, sneak shots, eavesdropping, spreading the privacy of others.