Skype - 2.0 Betriebsanweisung PDF herunterladen (Seite 22)

Page 22 IT Administrators Guide

3.4.1 Password security

Skype never requests a user’s account name or password by email. Skype passwords are

stored as a non-reversible hash. The only areas where passwords are needed are when:

Signing in to Skype

Signing in to Skype Manager

Managing Skype accounts at secure.skype.com/account/login

Signing in to other known-to-be-valid Skype accounts, such as developer.skype.

com

Skype keeps two references to each user’s email address, one in the prole on their

computer and the other in My Account on our website (for password recovery). If their

email address changes, it should be updated in both places.

You should also educate users on smart online practices, including:

Effective passwords and password management

User identities

The signicance of potential phishing attacks

The risks of receiving and opening executables

3.4.2 Viruses and Trojans

Skype simplies le transfers by allowing direct le transfer between Skype clients.

However P2P le transfer is a security challenge for corporate networks, as it bypasses

your business' network security infrastructure. For this reason, you can disable le

transfer throughout your organization via the GPO Editor or by changes to the XML les, if

required. By default, le transfers are enabled.

Some basic guidelines will protect your corporate network and still allow users to use le

transfer. Receiving users must:

Have shared contact details.

Have not blocked the sender.

Be online when the sender initiates the le transfer.

Be willing and able to accept the le transfer from the sender.

Note:

Files to be transferred must be smaller than 2GB.

The best practice for any le transfer is that all les should be scanned for viruses and

malware. You should enable real-time scanning on your anti-virus software, which will

automatically scan before sending or receiving a le.

Note:

Skype has no support for centralized anti-virus scanning.

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Skype - 2.0 Betriebsanweisung Seite 22