Donating online requires additional attention, while donating online not only your money but also your personal information is under risk. To prevent undesired events, do not answer the mails that come again and again. If the doubtful mail consists of any attachment erase it without opening. Be cautious while talking to the person who says s/he is a victim. If you are persuaded about the trustiness of the mail sender and mail, search for the website of the charity. Charity organizations generally give guarantee about themselves, and about your privacy, look for these features.