Using nmap revealing sensitive information

check this => http://prntscr.com/3xlww2 nmap scan result . Starting Nmap 6.46 ( http://nmap.org ) at 2014-06-29 15:34 India Standard Time NSE: Loaded 30 scripts for scanning. NSE: Script Pre-scanning. Initiating Parallel DNS resolution of 1 host. at 15:35 Completed Parallel DNS resolution of 1 host. at 15:35, 11.01s elapsed Initiating SYN Stealth Scan at 15:35 Scanning staging.jsdelivr.net (107.170.64.215) [1000 ports] Discovered open port 21/tcp on 107.170.64.215 Discovered open port 80/tcp on 107.170.64.215 Completed SYN Stealth Scan at 15:35, 15.91s elapsed (1000 total ports) Initiating Service scan at 15:35 Scanning 2 services on staging.jsdelivr.net (107.170.64.215) Completed Service scan at 15:35, 6.62s elapsed (2 services on 1 host) Initiating OS detection (try #1) against staging.jsdelivr.net (107.170.64.215) Initiating Traceroute at 15:35 Completed Traceroute at 15:35, 0.37s elapsed Initiating Parallel DNS resolution of 16 hosts. at 15:35 Completed Parallel DNS resolution of 16 hosts. at 15:36, 15.40s elapsed NSE: Script scanning 107.170.64.215. Initiating NSE at 15:36 Completed NSE at 15:37, 61.89s elapsed Nmap scan report for staging.jsdelivr.net (107.170.64.215) Host is up (0.29s latency). Not shown: 994 closed ports PORT STATE SERVICE VERSION 21/tcp open ftp vsftpd 3.0.2+ (ext.1) 80/tcp open http nginx | http-enum: |_ /robots.txt: Robots file 135/tcp filtered msrpc 139/tcp filtered netbios-ssn 444/tcp filtered snpp 445/tcp filtered microsoft-ds Device type: general purpose Running: Linux 3.X OS CPE: cpe:/o:linux:linux_kernel:3 OS details: Linux 3.0 - 3.9 Uptime guess: 1.872 days (since Fri Jun 27 18:42:06 2014) Network Distance: 16 hops TCP Sequence Prediction: Difficulty=265 (Good luck!) IP ID Sequence Generation: All zeros TRACEROUTE (using port 143/tcp) HOP RTT ADDRESS 1 1.00 ms 192.168.0.1 2 1.00 ms 162.162.162.1 3 19.00 ms 110.172.171.17 4 25.00 ms 110.172.171.253 5 17.00 ms 125.19.8.241 6 98.00 ms 182.79.245.26 7 160.00 ms 116.51.27.225 8 147.00 ms ae-1.r20.sngpsi05.sg.bb.gin.ntt.net (129.250.3.146) 9 267.00 ms ae-3.r20.snjsca04.us.bb.gin.ntt.net (129.250.3.48) 10 345.00 ms ae-4.r21.asbnva02.us.bb.gin.ntt.net (129.250.4.102) 11 339.00 ms ae-0.r20.asbnva02.us.bb.gin.ntt.net (129.250.4.4) 12 331.00 ms ae-8.r23.nycmny01.us.bb.gin.ntt.net (129.250.2.148) 13 365.00 ms ae-13.r05.nycmny01.us.bb.gin.ntt.net (129.250.4.166) 14 352.00 ms xe-0-4-0-10.r06.nycmny01.us.ce.gin.ntt.net (129.250.204.106) 15 349.00 ms 192.241.164.238 16 289.00 ms staging.jsdelivr.net (107.170.64.215) NSE: Script Post-scanning. Read data files from: C:\Program Files (x86)\Nmap OS and Service detection performed. Please report any incorrect results at http://nmap.org/submit/ . Nmap done: 1 IP address (1 host up) scanned in 130.93 seconds Raw packets sent: 1080 (48.378KB) | Rcvd: 1062 (44.154KB)