The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 2016
Filed:
Aug. 19, 2014
Applicant:
F-secure Corporation, Helsinki, FI;
Inventors:
Marko Thure, Helsinki, FI;
Mikko Suominen, Helsinki, FI;
Assignee:
F-Secure Corporation, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/55 (2013.01);
U.S. Cl.
CPC ...
G06F 21/554 (2013.01);
Abstract
A method in a computer for detecting a file encryption attack. The computer detects an attempt to overwrite current file data of a file with new file data. The computer then compares the new file data to the current file data to obtain a measure of the difference between the current and the new file data, and if the difference exceeds a threshold, the computer considers this to identify a file encryption attack.