Wireless security

Wireless Security Contents  Wireless Overview  Wireless Security Risks  Enhance Wireless Security  Wireless diagram for finance organization I Wireless Overview  More convenience than wired LAN  Easy to connect, easy to share  High Transport Speed 802.11ac standard can archive maximum 1,69 Gbit/s  Most technology devices support WLAN (802.11a/b/g/n/ac): computer, phone, tablet, camera, printer, television, memory stick,…  Municipal wireless network: some cities have coverage wireless such as Bangkok, Singapore, Ha long, Hoi an, Da nang, Hue II Wireless security risk  Weak encryption WEP  MIM - Man in the middle  Easy bridge to wired LAN  Rouge AP, evil twin,…  Untrusted providers: Firmware, Embedded wireless chip on Housewares such as clothes iron, water heater,… III Enhance Wireless Security Create a Wireless Security Policy Secure the WLAN Protect Your Company from Outside Threats Security Awareness Training Create a Wireless Security Policy  Acceptable use policy  E-mail and communications activities  Antivirus policy  Identity policy  Password policy  Encryption policy  Remote access policy Secure the WLAN Use strong encryption: WPA, WPA2  Change the default SSID, default administrator account/ password  Use VLANs or MAC address control lists  Disable SSID broadcast  Guest access SSID  AP Isolation  Secure management ports  Secure communications  Physical secure Access points  Limit Wireless range  Turn off Wireless when not use  Regularly changing encryption keys  Protect Your Company from Outside Threats  802.1X authentication: RADIUS  Assign Static IP  Network Firewall and personal firewall software  VPN: Virtual Private Network  NAC: Network Access Control  Wireless IPS: Prevent unauthorized, rogue AP, evil twin and other wireless threats  Wireless Security Endpoints: BYOD  Wireless Management System  Logging Wireless Security Awareness Training  Train users for using wireless securely  Understand Wireless Security Policy and follow the policy  Do Not Auto-Connect to Open Wi-Fi Networks 10 IV Wireless diagram for finance organization  Requirements: Wireless used for customers and VIP employees, especially for HO and meeting rooms  Highest security, prevent any wireless threats  11 Wireless diagram for finance organization  Diagram 12 Wireless diagram for finance organization  Diagram 13 Comparison Method Diagram 1: Advantage Design Diagram 1: Disadvantage Diagram 2: Advantage Equip Firewall, private Internet line for Branches No need to equip private Internet line for Branches Diagram 2: Disadvantage Performance Fast Internet access, low delay Slow Internet access, high delay, can effect WAN connection Security Secure Internal LAN, Internet access cannot go inside Passthough WAN Infrastructure, hard to control security Availability Keep access Internet as if WAN line lost Cannot access Internet if WAN line lost Operation Hard operation as must control separate Internet line of branches Easy to control because of central Internet management at HO 14 Which diagram is the best for your company?  It depends on what you need  If Wireless is deployed for several branches, diagram should be the best  If Wireless is deployed for huge branches, diagram should be considered 15 Wireless Solution Providers  Airtight  Cisco  Aruba  Ruckus  Juniper  Meraki  HP 16 References  http:// www.cisco.com/web/solutions/smb/need_to/five_w ays_to_improve_your_wireless_security.html  http:// compnetworking.about.com/od/wirelesssecurity/tp/ wifisecurity.htm 17 Questions and Answers  Please contact: minhtoai@yahoo.com THANK YOU!  ...2 Contents  Wireless Overview  Wireless Security Risks  Enhance Wireless Security  Wireless diagram for finance organization I Wireless Overview  More convenience... Access Control  Wireless IPS: Prevent unauthorized, rogue AP, evil twin and other wireless threats  Wireless Security Endpoints: BYOD  Wireless Management System  Logging Wireless Security Awareness... Embedded wireless chip on Housewares such as clothes iron, water heater,… III Enhance Wireless Security Create a Wireless Security Policy Secure the WLAN Protect Your Company from Outside Threats Security