Microsoft has called for safer online community in Nigeria, stressing that cybercrime will cost the global economy $6 trillion by 2021. Microsoft said the call became necessary following increasing phishing attacks on the Nigerian community.The firm said phishing, which is the biggest security headache for businesses and individuals, is among the hardest to tackle. The American technology company said phishing increased by over 250 per cent in Nigeria and other parts of the world.Phishing is the fraudulent attempt to obtain sensitive information such as usernames, passwords and credit card details by disguising oneself as a trustworthy entity in an electronic …