e safety puzzle

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Across
  1. 1. Sending messages constantly to the same person
  2. 3. explicit photographs or messages via mobile phone
  3. 5. Some one bulling some one through the internet
  4. 7. challenge An internet challenge is a challenge sent to you by some one threning to do something or have a punishment
Down
  1. 1. websites and applications that enable users to create and share content or to participate in social networking
  2. 2. a piece of code which is capable of copying itself and typically has a detrimental effect, such as corrupting the system or destroying data
  3. 4. a naked human figure as a picture
  4. 6. Making it so someone can't access your account on the internet