To recognise if a friend is being cyber bullied, we can observe certain online activities that indicate such behaviour. These include: repeated posting of rumours about the person, giving threats online, posting the victim's personal information without consent, sexual harassment through inappropriate comments, and comments aimed to publicly ridicule the victim. Other activities include creating and uploading embarrassing pictures on social networking sites, sending threatening messages, and any form of insulting, degrading or intimidating online behaviour. If a friend appears distressed after using the internet or social media, avoids online platforms, or shows signs of mental harassment, these could be warning signs of cyber bullying.

The context mentions that cyber crimes are criminal activities or offences carried out in a digital environment. Cyber bullying can be considered a form of cyber crime where the computer is used as a tool to commit harassment against an individual with intent to cause mental harassment. The IT Act 2000, amended in 2008, recognises such offences. However, the specific provisions and sections of the IT Act 2000 (amended in 2008) to combat cyber bullying are not detailed in the provided context. The context establishes that such actions can be traced back using digital footprints, making the offender accountable for their actions.