Information security – Access control or authentication – Network
Reexamination Certificate
2004-11-20
2009-02-17
Vu, KimYen (Department: 2135)
Information security
Access control or authentication
Network
C726S015000, C726S022000, C726S023000, C726S024000, C726S025000, C713S187000, C713S188000, C713S189000
Reexamination Certificate
active
07493654
ABSTRACT:
A computer system having at least one CPU has as its only interface with the Internet and other external sources a virtual machine that contains a browser and/or other communications programs, so that e-mail and other external communications are opened within the virtual machine and stored within a virtual storage. The virtual machine is erased at frequent intervals, taking with it any changes made by virus or other hostile programs.
REFERENCES:
patent: 7093239 (2006-08-01), van der Made
patent: 7260820 (2007-08-01), Waldspurger et al.
patent: 2003/0037258 (2003-02-01), Koren
Bantz David F.
Chefalas Thomas E.
Mastrianni Steven J.
Pickover Clifford A.
International Business Machines - Corporation
Scully , Scott, Murphy & Presser, P.C.
To Baotran N
Vu Kim-Yen
Yamonaco Lisa M.
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