Conform unei cercetări de specialitate, efectuate în vara anului 2013, de B2B International în parteneriat cu Kaspersky Lab, 61% dintre utilizatori şi-au pierdut cel puţin o parte din informaţii pentru totdeauna. Pentru 14% dintre victime, informaţiile sunt pierdute pentru totdeauna.
Studiul arată că 59% dintre utilizatori aoreciază mai mult informaţiile stocate pe computer decât dispozitivul propriu-zis, în aceste condiţii explicându-se de ce aceştia sunt dispuşi să plătească pentru recuperarea datelor.
Programe dăunătoare, numite „file encryptor”, criptează fişierele de pe dispozitivele infectate, iar pentru decriptarea lor este nevoie de o parolă unică, iar singura cale de a obţine această parolă este negocierea cu infractorii, care cer bani.
Conform gandul.info, unul dintre cele mai periculoase exemple de astfel de malware este Seftad, care poate cripta fotografiile şi filmele utilizatorului şi sistemul master boot record, aşa încât accesul la computer este complet blocat şi poate distruge, fără vreo cale de recuperare, toate programele de pe hard disc.
Astfel de atacuri pot fi contracarate în două feluri: crearea de copii de siguranţă (backup-uri) şi folosirea unei soluţii de securitate de încredere.
Citeşte şi: Telefoanele Android din România, infectate cu VIRUŞI. Ce soluţii exista
Alertă! Un nou virus face ravagii pe Facebook
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