article_snippet.sent: At least three terror groups plotting attacks against Britain have changed At least three terror groups plotting attacks against Britain communication methods since the leaks by Snowden, the leaks by Edward Snowden was claimed last night.
article_snippet.sent: Al-Qaeda linked networks have altered Al-Qaeda linked networks tactics since the fugitive stole intelligence files from GCHQ and the US National Security Agency, according to a report.
article_snippet.sent: Extremist websites have also moved to protect Extremist websites digital communications by releasing encryption programmes for followers, making it harder for extremists to be tracked down.
article_snippet.sent: Now the Henry Jackson Society has found that at least three Al Qaeda affiliates are known to have altered at least three Al Qaeda affiliates communications.
article_snippet.sent: the Henry Jackson Society security think-tank has also found other groups using human couriers instead of email and mobile phones.
article_snippet.sent: Jihadist websites also released three 'significant' encryption programmes 'within a three- to five-month time frame of the leaks by the Henry Jackson Society security think-tank', meaning fanatics are harder to detect and encrypted emails take longer to decipher.
highlights_snippet.sent: Al-Qaeda linked networks have altered tactics since Snowden stole files .
  