Skype - 2.0 Betriebsanweisung PDF herunterladen (Seite 23)

Page 23 IT Administrators Guide

3.4.3 Falsifying user identity

It's highly unlikely that anyone could impersonate another user’s Skype identity. We use

public-key cryptography with signed digital credentials to authenticate users. Signed

digital credentials are only valid for a limited period, then renewed for additional security.

However, there’s currently no way to denitively check that a user’s ofine identity

matches their online identity. As with email, users can create accounts under an assumed

name, be listed in Skype’s user directory and impersonate others.

You can address this by educating users on the limitations of online identity. Users should

rst exchange Skype identities at meetings or through email to verify them. As with any

email or internet communication, users should know who they’re communicating with

before they divulge any private information. It’s the user’s responsibility to prevent their

Skype account from being accessed by others.

Please report abuse to us by email, at abuse@skype.com.

3.4.4 Spam and SPIT

Unsolicited email is an unwanted reality of email communications today. We’ve taken

steps to prevent Skype being used as a tool to help spammers or those who Spam over

Internet Telephony (SPIT).

You can help to counter spam and SPIT by instructing users to:

Only authorize users whose identity they’ve conrmed.

Set privacy settings so they can only be called by people they know.

Include a note in their Skype prole asking potential callers to send a chat

message before calling.

3.4.5 Adware and spyware

Neither Skype nor the Skype installation programme includes any adware or spyware.

However, there are seemingly legitimate online installers that have bundled the Skype

client with third party software without permission. This unauthorized software may

include adware or spyware.

To avoid such malware, we strongly recommend that you download Skype only from our

website at skype.com/business.

Skype software installers for Microsoft Windows XP, Windows 2000 and Mac OS X

are digitally signed, as is the application itself. This lets you verify the Skype software

installer’s digital signature before you install the client, preventing accidental installation

of any malware.

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Skype - 2.0 Betriebsanweisung Seite 23