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Uncategorized Skype for Business SkypeShield Smart card for authentication Two Factor Authentication

What’s broken with Skype for Business security and how to fix it

Two factor authentication (2FA) security solutions are gaining popularity as they add a meaningful extra level of protection against phishing, keyloggers, password reuse and other threats.

At the same time, users of Microsoft’s on premises products, such as Skype for Business (Lync) and SharePoint are left behind. The vast majority of Skype for Business users are limited to authentication practices that became insufficient already in the mid 90’s.

Skype for Business offers only one option for securing yourself using two factor authentication – smart cards. These cards work, however, only on a Windows desktop client, making this an option only for organizations that are willing to issue workers smart cards and are not planning mobility deployment in the future.

Using Skype for Business Online (part of Office 365) is problematic as well. Microsoft claims it offers 2FA but it does not work for Skype for Business desktop or mobile. These mobile and desktop clients require “App Passwords”, which only offer one factor authentication.

Enabling Microsoft’s native 2FA, whether on the cloud or on premises, disables essential parts of Lync, such as access to Exchange for meeting info and to any contacts in the Unified contact store.

So what can be done?

SkypeShield hardens Skype for Business security and provides essential new features, which work with Lync 2013 as well as Skype for Business.

It offers device management that allows users to self-register their mobile devices easily, so that malicious parties cannot authenticate, even if they manage to obtain a user’s password.

SkypeShield also offers two factor authentication using existing RSA secure ID tokens or the widely used Google Authenticator as well as plenty of other significant security features.

All of these additional security options protect access to MS Exchange too, providing uninterrupted access to meeting information and contacts.

The writer is Technical lead at SkypeShield

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LyncShield Microsoft Lync Skype for Business Two Factor Authentication Uncategorized

SkypeShield presented new Skype for Business security solutions at Microsoft’s partner meeting in Hong Kong

SkypeShield has presented a complete security suit for safely connecting to corporate Skype for Business (Lync) servers from mobile and external devices at the upcoming Microsoft partner meeting Channel Kick-off 2015, which took place in Hong Kong on September 11, 2011.

SkypeShield’s solutions had been presented at the event by Continuous Technologies, which has recently become SkypeShield’s distributer in Hong Kong.

At the Microsoft event, SkypeShield showcased solutions to protect the organization’s Active Directory, Skype for Business and Exchange infrastructure. Among others, the company presented new security solutions including:

  • Network protection – Protect against account lockout in DDoS attack.
  • Two Factor Authentication – TFA by requiring the device as the second factor in addition to credentials to Lync & Exchange (EWS). Optionally can require three factor based on VPN access / certificate.
  • Device Access Control – Restrict the usage of Skype for Business & Exchange only to registered devices. Solution can limit usage to corporate or managed devices (with MDM) or control BYOD deployment.
  • Active Directory credentials protection – Avoid using and storing AD credentials on device by defining dedicated Skype for Business credentials or using RSA tokens.

Established in 1989 and headquartered in Hong Kong with offices in Beijing, Shanghai, Guangzhou and Nanjing, Continuous Technologies is a Microsoft Gold Communications Partner. With more than 20 years of implementation experience across multiple industries, Continuous Technologies are experts in customer interaction systems with a proven track record in implementing Skype for Business.

The Channel Kick-off 2015 was aimed at showing Microsoft partners the latest technology and innovation. Local partners, IT community leaders and Microsoft executives attended the event.

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Skype for Business SkypeShield Two Factor Authentication Uncategorized

Keep your corporate email safe while publishing Skype for Business

Skype for Business (Lync) is gaining popularity among organizations that wish to benefit from high-quality communication within the corporation.

These organizations should realize, however, that as part of the Skype for Business deployment, Exchange Web Services (EWS) are required to be published externally in order to allow meeting information to be available to the Skype for Business client. This carries the risk of enabling a potential attacker to obtain access to all of the Exchange’s resources including emails, attachments and contacts.

These risks are divided into two categories:

  • The EWS service allows for retrieving events, mails and attachments, tasks and contacts. Therefore, once exposed, all the Exchange data is also exposed.
  • The deployment of EWS requires authentication, thus exposing the network to account lockout in case of a DDoS attack.

SkypeShield has identified these risks and has eliminated them, blocking any information requests arriving from unregistered devices and adding a Two Factor Authentication (TFA) layer for the Exchange.

The solution is based on a Two Factor Authentication process, which requires for the authentication to have both the user’s password and device. The result is that unauthorized usage of the user’s credentials is not sufficient to connect to Skype for Business or Exchange without having access to the device itself.