Hello! Do you know if they make any plugins to safeguard against hackers?

I'm kinda paranoid about losing everything I've 
worked hard on. Any suggestions? http://www.vpstrust.com/en/wiki/index.php?title=Uma_An%C3%83%C2%A1lise_Da_Gravidade_Da_Estrutura_De_Gerenciamento_De_Projetos_No_Alcance_Dos_Objetivos_Estrat%C3%83_gicos