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Buy from Amazon $39.99$0.01 $30.00 $20.00 $10.00 Sep Nov Jan Mar May Jul Sep Nov Jan Mar May 2015 2016 $36.73, Jul 14 - Aug 10$5.83, Jul 14 2:38 pm$0.01, Jul 14 - Apr 23$36.73, Jul 14 - Aug 10$5.80, Jul 16 2:06 am$0.01, Jul 14 - Apr 23$36.73, Jul 14 - Aug 10$5.75, Jul 18 4:06 pm$0.01, Jul 14 - Apr 23$36.73, Jul 14 - Aug 10$5.73, Jul 19 10:03 pm$0.01, Jul 14 - Apr 23$36.73, Jul 14 - Aug 10$5.69, Jul 21 5:04 pm$0.01, Jul 14 - Apr 23$36.73, Jul 14 - Aug 10$5.66, Jul 23 2:59 am$0.01, Jul 14 - Apr 23$36.73, Jul 14 - Aug 10$5.63, Jul 24 9:16 pm$0.01, Jul 14 - Apr 23$36.73, Jul 14 - Aug 10$5.58, Jul 26 4:31 pm$0.01, Jul 14 - Apr 23$36.73, Jul 14 - Aug 10$5.55, Jul 28 11:30 am$0.01, Jul 14 - Apr 23$36.73, Jul 14 - Aug 10$5.53, Jul 29 9:30 am$0.01, Jul 14 - Apr 23$36.73, Jul 14 - Aug 10$5.48, Jul 31 4:56 am$0.01, Jul 14 - Apr 23$36.73, Jul 14 - Aug 10$5.43, Aug 1 11:54 pm$0.01, Jul 14 - Apr 23$36.73, Jul 14 - Aug 10$5.40, Aug 3 6:40 pm$0.01, Jul 14 - Apr 23$36.73, Jul 14 - Aug 10$5.36, Aug 5 3:34 pm$0.01, Jul 14 - Apr 23$36.73, Jul 14 - Aug 10$5.35, Aug 6 8:02 pm$0.01, Jul 14 - Apr 23$36.73, Jul 14 - Aug 10$5.28, Aug 8 8:15 pm$0.01, Jul 14 - Apr 23$36.73, Jul 14 - Aug 10$5.24, Aug 9 6:57 pm$0.01, Jul 14 - Apr 23$36.36, Aug 11 - Aug 31$5.16, Aug 11 4:14 pm$0.01, Jul 14 - Apr 23$36.36, Aug 11 - Aug 31$5.08, Aug 13 - Aug 14$0.01, Jul 14 - Apr 23$36.36, Aug 11 - Aug 31$5.06, Aug 15 11:24 am$0.01, Jul 14 - Apr 23$36.36, Aug 11 - Aug 31$5.03, Aug 16 9:43 am$0.01, Jul 14 - Apr 23$36.36, Aug 11 - Aug 31$4.97, Aug 17 1:27 pm$0.01, Jul 14 - Apr 23$36.36, Aug 11 - Aug 31$4.86, Aug 20 10:31 am$0.01, Jul 14 - Apr 23$36.36, Aug 11 - Aug 31$4.82, Aug 21 10:24 am$0.01, Jul 14 - Apr 23$36.36, Aug 11 - Aug 31$4.77, Aug 23 10:27 am$0.01, Jul 14 - Apr 23$36.36, Aug 11 - Aug 31$4.72, Aug 24 12:21 pm$0.01, Jul 14 - Apr 23$36.36, Aug 11 - Aug 31$4.63, Aug 26 3:11 pm$0.01, Jul 14 - Apr 23$36.36, Aug 11 - Aug 31$4.57, Aug 27 6:08 pm$0.01, Jul 14 - Apr 23$36.36, Aug 11 - Aug 31$4.47, Aug 29 10:56 pm$0.01, Jul 14 - Apr 23$36.36, Aug 11 - Aug 31$4.43, Aug 31 8:15 am$0.01, Jul 14 - Apr 23$35.99, Sep 1 - Sep 30$4.39, Sep 1 11:30 am$0.01, Jul 14 - Apr 23$35.99, Sep 1 - Sep 30$4.28, Sep 3 8:56 pm$0.01, Jul 14 - Apr 23$35.99, Sep 1 - Sep 30$4.23, Sep 5 2:10 am$0.01, Jul 14 - Apr 23$35.99, Sep 1 - Sep 30$4.19, Sep 6 6:18 am$0.01, Jul 14 - Apr 23$35.99, Sep 1 - Sep 30$4.10, Sep 8 4:53 pm$0.01, Jul 14 - Apr 23$35.99, Sep 1 - Sep 30$4.06, Sep 9 10:33 pm$0.01, Jul 14 - Apr 23$35.99, Sep 1 - Sep 30$3.98, Sep 12 7:32 am$0.01, Jul 14 - Apr 23$35.99, Sep 1 - Sep 30$3.94, Sep 13 11:30 am$0.01, Jul 14 - Apr 23$35.99, Sep 1 - Sep 30$3.86, Sep 15 2:24 pm$0.01, Jul 14 - Apr 23$35.99, Sep 1 - Sep 30$3.79, Sep 17 4:57 pm$0.01, Jul 14 - Apr 23$35.99, Sep 1 - Sep 30$3.71, Sep 19 6:33 pm$0.01, Jul 14 - Apr 23$35.99, Sep 1 - Sep 30$3.60, Sep 22 12:16 pm$0.01, Jul 14 - Apr 23$35.99, Sep 1 - Sep 30$3.53, Sep 24 11:04 am$0.01, Jul 14 - Apr 23$35.99, Sep 1 - Sep 30$3.47, Sep 26 11:38 am$0.01, Jul 14 - Apr 23$35.99, Sep 1 - Sep 30$3.41, Sep 28 12:28 pm$0.01, Jul 14 - Apr 23$35.99, Sep 1 - Sep 30$3.34, Sep 30 1:12 pm$0.01, Jul 14 - Apr 23$30.44, Oct 2 4:35 pm$3.25, Oct 2 4:35 pm$0.01, Jul 14 - Apr 23$30.45, Oct 4 - Oct 8$3.17, Oct 4 6:34 pm$0.01, Jul 14 - Apr 23$30.45, Oct 4 - Oct 8$3.10, Oct 6 8:00 pm$0.01, Jul 14 - Apr 23$30.45, Oct 4 - Oct 8$3.03, Oct 8 10:04 pm$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$2.94, Oct 10 11:29 pm$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$2.88, Oct 13 2:25 am$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$2.80, Oct 15 4:21 am$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$2.72, Oct 17 9:33 am$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$2.66, Oct 19 1:58 pm$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$2.58, Oct 21 6:46 pm$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$2.49, Oct 24 2:13 am$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$2.30, Oct 29 11:32 pm$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$2.07, Nov 4 12:04 pm$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$1.84, Nov 10 7:12 pm$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$1.74, Nov 16 12:24 am$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$1.70, Nov 19 2:47 am$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$1.69, Nov 21 5:47 am$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$1.68, Nov 23 6:39 am$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$1.67, Nov 25 11:05 am$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$1.66, Nov 27 7:55 am$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$1.65, Nov 29 6:15 am$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$1.64, Dec 1 3:40 am$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$1.63, Dec 3 2:54 am$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$1.62, Dec 5 12:48 am$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$1.61, Dec 6 8:18 pm$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$1.59, Dec 8 10:30 pm$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$1.58, Dec 11 3:55 am$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$1.56, Dec 13 1:23 am$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$1.55, Dec 14 11:11 pm$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$1.54, Dec 16 10:10 pm$0.01, Jul 14 - Apr 23$35.63, Oct 10 - Dec 21$1.52, Dec 21 7:20 pm$0.01, Jul 14 - Apr 23$35.45, Dec 31 - Jan 22$1.47, Dec 31 1:55 pm$0.01, Jul 14 - Apr 23$35.45, Dec 31 - Jan 22$1.46, Jan 2 8:31 am$0.01, Jul 14 - Apr 23$35.45, Dec 31 - Jan 22$1.45, Jan 4 2:15 am$0.01, Jul 14 - Apr 23$35.45, Dec 31 - Jan 22$1.44, Jan 6 - Jan 7$0.01, Jul 14 - Apr 23$35.45, Dec 31 - Jan 22$1.43, Jan 8 - Jan 9$0.01, Jul 14 - Apr 23$35.45, Dec 31 - Jan 22$1.41, Jan 11 - Jan 13$0.01, Jul 14 - Apr 23$35.45, Dec 31 - Jan 22$1.40, Jan 14 7:42 pm$0.01, Jul 14 - Apr 23$35.45, Dec 31 - Jan 22$1.39, Jan 16 9:49 am$0.01, Jul 14 - Apr 23$35.45, Dec 31 - Jan 22$1.38, Jan 18 3:06 am$0.01, Jul 14 - Apr 23$35.45, Dec 31 - Jan 22$1.37, Jan 19 5:42 pm$0.01, Jul 14 - Apr 23$35.45, Dec 31 - Jan 22$1.36, Jan 21 8:15 am$0.01, Jul 14 - Apr 23$35.45, Dec 31 - Jan 22$1.35, Jan 22 11:27 pm$0.01, Jul 14 - Apr 23$31.40, Jan 24 - Feb 1$1.34, Jan 24 - Jan 26$0.01, Jul 14 - Apr 23$31.40, Jan 24 - Feb 1$1.33, Jan 27 11:49 pm$0.01, Jul 14 - Apr 23$31.40, Jan 24 - Feb 1$1.32, Jan 29 2:56 pm$0.01, Jul 14 - Apr 23$31.40, Jan 24 - Feb 1$1.31, Jan 30 - Feb 1$0.01, Jul 14 - Apr 23$30.63, Feb 3 - Feb 15$1.29, Feb 3 - Feb 4$0.01, Jul 14 - Apr 23$30.63, Feb 3 - Feb 15$1.28, Feb 6 6:27 pm$0.01, Jul 14 - Apr 23$30.63, Feb 3 - Feb 15$1.27, Feb 8 1:15 pm$0.01, Jul 14 - Apr 23$30.63, Feb 3 - Feb 15$1.25, Feb 10 8:08 am$0.01, Jul 14 - Apr 23$30.63, Feb 3 - Feb 15$1.23, Feb 12 3:49 am$0.01, Jul 14 - Apr 23$30.63, Feb 3 - Feb 15$1.21, Feb 13 10:29 pm$0.01, Jul 14 - Apr 23$30.63, Feb 3 - Feb 15$1.20, Feb 15 6:45 pm$0.01, Jul 14 - Apr 23$30.55, Feb 17 - Feb 28$1.18, Feb 17 5:13 pm$0.01, Jul 14 - Apr 23$30.55, Feb 17 - Feb 28$1.16, Feb 19 2:54 pm$0.01, Jul 14 - Apr 23$30.55, Feb 17 - Feb 28$1.14, Feb 21 12:46 pm$0.01, Jul 14 - Apr 23$30.55, Feb 17 - Feb 28$1.12, Feb 23 10:39 am$0.01, Jul 14 - Apr 23$30.55, Feb 17 - Feb 28$1.10, Feb 25 8:31 am$0.01, Jul 14 - Apr 23$30.55, Feb 17 - Feb 28$1.08, Feb 27 6:41 am$0.01, Jul 14 - Apr 23$30.55, Feb 17 - Feb 28$1.07, Feb 28 6:07 am$0.01, Jul 14 - Apr 23$30.38, Mar 2 - Mar 15$1.05, Mar 2 11:34 pm$0.01, Jul 14 - Apr 23$30.38, Mar 2 - Mar 15$1.04, Mar 4 8:28 pm$0.01, Jul 14 - Apr 23$30.38, Mar 2 - Mar 15$1.02, Mar 6 7:53 pm$0.01, Jul 14 - Apr 23$30.38, Mar 2 - Mar 15$1.00, Mar 8 6:46 pm$0.01, Jul 14 - Apr 23$30.38, Mar 2 - Mar 15$0.99, Mar 11 2:37 am$0.01, Jul 14 - Apr 23$30.38, Mar 2 - Mar 15$0.97, Mar 13 8:28 am$0.01, Jul 14 - Apr 23$30.38, Mar 2 - Mar 15$0.95, Mar 15 4:13 pm$0.01, Jul 14 - Apr 23$30.40, Mar 18 - Apr 1$0.93, Mar 18 5:42 am$0.01, Jul 14 - Apr 23$30.40, Mar 18 - Apr 1$0.90, Mar 20 1:25 pm$0.01, Jul 14 - Apr 23$30.40, Mar 18 - Apr 1$0.89, Mar 23 12:18 am$0.01, Jul 14 - Apr 23$30.40, Mar 18 - Apr 1$0.88, Mar 25 7:38 am$0.01, Jul 14 - Apr 23$30.40, Mar 18 - Apr 1$0.86, Mar 27 2:39 pm$0.01, Jul 14 - Apr 23$30.40, Mar 18 - Apr 1$12.42, Mar 29 11:35 pm$0.01, Jul 14 - Apr 23$30.40, Mar 18 - Apr 1$0.84, Apr 1 9:38 am$0.01, Jul 14 - Apr 23$30.64, Apr 4 - Apr 23$0.82, Apr 4 2:03 am$0.01, Jul 14 - Apr 23$30.64, Apr 4 - Apr 23$0.81, Apr 6 4:57 pm$0.01, Jul 14 - Apr 23$30.64, Apr 4 - Apr 23$0.78, Apr 9 10:09 am$0.01, Jul 14 - Apr 23$30.64, Apr 4 - Apr 23$0.76, Apr 12 7:14 am$0.01, Jul 14 - Apr 23$30.64, Apr 4 - Apr 23$0.74, Apr 15 4:44 am$0.01, Jul 14 - Apr 23$30.64, Apr 4 - Apr 23$0.72, Apr 17 5:06 pm$0.01, Jul 14 - Apr 23$30.64, Apr 4 - Apr 23$0.70, Apr 20 7:11 am$0.01, Jul 14 - Apr 23$30.64, Apr 4 - Apr 23$0.68, Apr 23 1:25 am$0.01, Jul 14 - Apr 23$30.64, Apr 26 - Apr 29$0.66, Apr 26 2:26 am$0.01, Apr 26 - Aug 22$30.64, Apr 26 - Apr 29$0.63, Apr 29 2:00 am$0.01, Apr 26 - Aug 22OOS $30.64, May 1 9:01 pm$0.61, May 1 9:01 pm$0.01, Apr 26 - Aug 22$30.64, May 4 - Jun 13$0.59, May 4 11:33 am$0.01, Apr 26 - Aug 22$30.64, May 4 - Jun 13$0.56, May 7 2:40 pm$0.01, Apr 26 - Aug 22$30.64, May 4 - Jun 13$0.53, May 11 9:04 am$0.01, Apr 26 - Aug 22$30.64, May 4 - Jun 13$0.50, May 14 2:32 pm$0.01, Apr 26 - Aug 22$30.64, May 4 - Jun 13$0.46, May 18 6:47 pm$0.01, Apr 26 - Aug 22$30.64, May 4 - Jun 13$0.44, May 22 11:00 pm$0.01, Apr 26 - Aug 22$30.64, May 4 - Jun 13$0.41, May 27 6:40 am$0.01, Apr 26 - Aug 22$30.64, May 4 - Jun 13$0.37, May 31 8:40 pm$0.01, Apr 26 - Aug 22$30.64, May 4 - Jun 13$0.33, Jun 5 11:54 am$0.01, Apr 26 - Aug 22$30.64, May 4 - Jun 13$0.30, Jun 9 5:45 pm$0.01, Apr 26 - Aug 22$30.64, May 4 - Jun 13$0.26, Jun 13 3:49 pm$0.01, Apr 26 - Aug 22$37.99, Jun 17 8:31 am$0.23, Jun 17 8:31 am$0.01, Apr 26 - Aug 22$32.64, Jun 21 - Aug 10$0.19, Jun 21 3:48 am$0.01, Apr 26 - Aug 22$32.64, Jun 21 - Aug 10$0.21, Jun 24 10:28 pm$0.01, Apr 26 - Aug 22$32.64, Jun 21 - Aug 10$0.18, Jun 29 12:41 am$0.01, Apr 26 - Aug 22$32.64, Jun 21 - Aug 10$0.15, Jul 3 3:44 am$0.01, Apr 26 - Aug 22$32.64, Jun 21 - Aug 10$0.11, Jul 7 9:45 am$0.01, Apr 26 - Aug 22$32.64, Jun 21 - Aug 10$0.06, Jul 12 - Jul 20$0.01, Apr 26 - Aug 22$32.64, Jun 21 - Aug 10$0.05, Jul 23 - Aug 7$0.01, Apr 26 - Aug 22$32.64, Jun 21 - Aug 10$0.04, Aug 10 - Aug 26$0.01, Apr 26 - Aug 22$32.14, Aug 14 - Aug 22$0.04, Aug 10 - Aug 26$0.01, Apr 26 - Aug 22$33.58, Aug 26 - Sep 6$0.04, Aug 26 12:17 am$0.04, Aug 10 - Aug 26$33.58, Aug 26 - Sep 6$0.03, Aug 29 - Sep 18$0.03, Aug 29 - Sep 14$31.89, Sep 10 - Sep 21$0.03, Aug 29 - Sep 18$0.03, Aug 29 - Sep 14$31.89, Sep 10 - Sep 21$0.19, Sep 18 1:36 am$0.03, Aug 29 - Sep 18$31.89, Sep 10 - Sep 21$12.45, Sep 21 - Mar 28$0.36, Sep 21 - Oct 27$31.78, Sep 25 - Sep 29$12.45, Sep 21 - Mar 28$0.36, Sep 21 - Oct 27$39.99, Oct 3 - Oct 12$12.45, Sep 21 - Mar 28$0.36, Sep 21 - Oct 27$37.30, Oct 16 1:33 am$12.45, Sep 21 - Mar 28$0.36, Sep 21 - Oct 27OOS $37.30, Oct 19 10:37 pm$12.45, Sep 21 - Mar 28$0.36, Sep 21 - Oct 27OOS $35.43, Oct 23 7:27 pm$12.45, Sep 21 - Mar 28$0.36, Sep 21 - Oct 27$35.31, Oct 27 - Nov 26$12.45, Sep 21 - Mar 28$0.36, Sep 21 - Oct 27$35.31, Oct 27 - Nov 26$12.45, Sep 21 - Mar 28$0.01, Oct 31 - Jan 19$39.99, Nov 30 - Dec 15$12.45, Sep 21 - Mar 28$0.01, Oct 31 - Jan 19OOS $39.99, Dec 20 7:29 pm$12.45, Sep 21 - Mar 28$0.01, Oct 31 - Jan 19OOS $35.57, Dec 26 - Dec 31$12.45, Sep 21 - Mar 28$0.01, Oct 31 - Jan 19OOS $33.79, Jan 4 5:22 pm$12.45, Sep 21 - Mar 28$0.01, Oct 31 - Jan 19OOS $32.10, Jan 9 - Jan 14$12.45, Sep 21 - Mar 28$0.01, Oct 31 - Jan 19$32.10, Jan 19 12:38 pm$12.45, Sep 21 - Mar 28$0.01, Oct 31 - Jan 19$30.49, Jan 24 1:41 pm$12.45, Sep 21 - Mar 28$0.19, Jan 24 1:41 pm$28.96, Jan 29 - Feb 3$12.45, Sep 21 - Mar 28$0.29, Jan 29 2:35 pm$28.96, Jan 29 - Feb 3$12.45, Sep 21 - Mar 28$0.27, Feb 3 3:52 pm$27.51, Feb 8 - Feb 19$12.45, Sep 21 - Mar 28$0.19, Feb 8 6:03 pm$27.51, Feb 8 - Feb 19$12.45, Sep 21 - Mar 28$0.23, Feb 13 - Feb 19$36.23, Feb 24 - Mar 5$12.45, Sep 21 - Mar 28$0.24, Feb 24 - Mar 28$27.51, Mar 16 - Mar 28$12.45, Sep 21 - Mar 28$0.24, Feb 24 - Mar 28 207,2412,229,504 1,562,500 781,250 0 Oct Dec Feb Apr Jun Aug Oct Dec Feb Apr 2015 2016

Price Details

New

Latest $27.51 Mar 28, '16
Highest $39.99 Dec 20, '15
Lowest $27.51 Mar 16, '16
Average $32.88 (30d avg)
$31.55 (90d avg)
$34.48 (180d avg)
$33.12 (365d avg)
$33.66 (Lifetime average)
Added Jul 14, 2014

3rd Party New

Latest $12.45 Mar 28, '16
Highest $12.45 Sep 21, '15
Lowest $0.03 Aug 29, '15
Average $12.45 (30d avg)
$12.45 (90d avg)
$12.45 (180d avg)
$6.66 (365d avg)
$4.97 (Lifetime average)
Added Jul 14, 2014

3rd Party Used

Latest $0.24 Mar 28, '16
Highest $0.36 Sep 21, '15
Lowest $0.01 Oct 31, '15
Average $0.24 (30d avg)
$0.17 (90d avg)
$0.15 (180d avg)
$0.09 (365d avg)
$0.06 (Lifetime average)
Added Jul 14, 2014

Sales Rank

30 day average: 1,599,563
90 day average: 1,198,715

Product Description

This title seeks to provide a practical approach to developing secure networks. It shows how to prepare for, detect and respond to the most common types of attacks.

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