Skype - 2.0 Uživatelská příručka stáhnout pdf (Strana 21)

Page 21 IT Administrators Guide

Specically, users can set preferences determining whether:

Anyone can call or IM

Only people on their contacts list can call or IM

In addition, le transfer preferences can be set independently of both calls and IMs.

Users can also block a specic user from seeing their selected online Status or

communicating, even if contact details have already been shared. The list of blocked

users can be managed via their privacy settings.

3.3.3 Location of personal information

We keep some information on the user’s machine, on our servers (but not information

such as presence and location) and in the P2P network. While any personal information

stored and processed is done in line with applicable privacy laws, Skype provides no

inherent security for chat logs, les transferred or voicemail messages stored at the

client. You should tell users that:

Any machine that they use to check Skype continues to synchronize prole data

and chat history each time that it's subsequently used, keeping contact lists,

communication history and IM contents.

Chat logs are saved indenitely in a hidden le in the user’s home directory. They

can be congured to delete or expire (please see the list of les and registry key

locations created during installation in Appendix 2: File locations).

Once a text message, le transfer or audio/video stream is received by the

intended receiver, the sender cannot prevent it being copied, archived or

redistributed by the recipient.

3.4 Security best practice

You should take certain basic actions to address potential threats from:

Password misuse

Cross-site scripting and phishing

Viruses and Trojans

Falsifying user identity

SPAM and SPIT

Multi-logins

Skype editing

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Skype - 2.0 Uživatelská příručka Strana 21