WEBVTT X-TIMESTAMP-MAP=MPEGTS:900000, LOCAL:00:00:00.000 00:00:00.000 --> 00:00:00.800 align:middle line:90% 00:00:00.800 --> 00:00:03.030 align:middle line:84% - The extraordinary hacking spree 00:00:03.030 --> 00:00:06.600 align:middle line:84% that hit Twitter, targeting some of the most high profile 00:00:06.600 --> 00:00:10.950 align:middle line:84% accounts, is drawing urgent questions about the platform's 00:00:10.950 --> 00:00:13.200 align:middle line:90% security and resilience. 00:00:13.200 --> 00:00:16.410 align:middle line:84% The company said late Wednesday that hackers took control 00:00:16.410 --> 00:00:20.280 align:middle line:84% of employee credentials to hijack the accounts of some 00:00:20.280 --> 00:00:24.870 align:middle line:84% of the most prominent political and business figures in the US, 00:00:24.870 --> 00:00:28.020 align:middle line:84% from Barack Obama and Joe Biden to Bill 00:00:28.020 --> 00:00:30.060 align:middle line:90% Gates and Warren Buffett. 00:00:30.060 --> 00:00:32.910 align:middle line:84% In a series of tweets, the company said, quote, 00:00:32.910 --> 00:00:35.070 align:middle line:84% "we detected what we believed to be 00:00:35.070 --> 00:00:38.730 align:middle line:84% a coordinated social engineering attack by people who 00:00:38.730 --> 00:00:41.640 align:middle line:84% successfully targeted some of our employees 00:00:41.640 --> 00:00:45.240 align:middle line:84% with access to internal systems and tools." 00:00:45.240 --> 00:00:48.180 align:middle line:84% The company's statement confirmed the fears of security 00:00:48.180 --> 00:00:51.180 align:middle line:84% experts that the service itself, rather than 00:00:51.180 --> 00:00:53.670 align:middle line:90% users, had been compromised. 00:00:53.670 --> 00:00:56.220 align:middle line:84% Posing as celebrities and the wealthy, 00:00:56.220 --> 00:01:00.480 align:middle line:84% those responsible for the attack asked followers to send Bitcoin 00:01:00.480 --> 00:01:02.250 align:middle line:90% to a series of addresses. 00:01:02.250 --> 00:01:04.830 align:middle line:84% MIKKO HYPPONEN: I don't think this particular attack has 00:01:04.830 --> 00:01:06.480 align:middle line:90% any links to foreign nations. 00:01:06.480 --> 00:01:09.750 align:middle line:84% - Mikko Hypponen, a cybersecurity expert, 00:01:09.750 --> 00:01:13.710 align:middle line:84% says what the hackers chose to do with their access tells us 00:01:13.710 --> 00:01:15.705 align:middle line:90% a lot about who they could be. 00:01:15.705 --> 00:01:18.660 align:middle line:84% MIKKO HYPPONEN: Remembering they could do anything on Twitter, 00:01:18.660 --> 00:01:22.170 align:middle line:84% they chose to use these quick hack mechanisms of making 00:01:22.170 --> 00:01:24.060 align:middle line:90% a little bit of Bitcoin. 00:01:24.060 --> 00:01:26.860 align:middle line:84% They could have sold this access to a number of places-- 00:01:26.860 --> 00:01:29.340 align:middle line:84% for example, to foreign intelligence agencies. 00:01:29.340 --> 00:01:32.930 align:middle line:84% They could have used this access to announce a merger 00:01:32.930 --> 00:01:35.790 align:middle line:84% and acquisition in the name of Bill Gates or Elon Musk, 00:01:35.790 --> 00:01:38.610 align:middle line:84% which would have immediately affected stock prices. 00:01:38.610 --> 00:01:41.490 align:middle line:84% This was most likely an opportunistic hack, 00:01:41.490 --> 00:01:44.520 align:middle line:84% most likely done by some younger people. 00:01:44.520 --> 00:01:46.470 align:middle line:84% And this was the first thing they could imagine 00:01:46.470 --> 00:01:47.610 align:middle line:90% to make some money with. 00:01:47.610 --> 00:01:51.360 align:middle line:84% - Wednesday's hack, the worst to date for Twitter, 00:01:51.360 --> 00:01:54.930 align:middle line:84% is also raising questions about Twitter's resilience 00:01:54.930 --> 00:01:57.990 align:middle line:84% in the run-up to the US presidential election. 00:01:57.990 --> 00:02:01.800 align:middle line:84% Its role as a key communications platform for politicians 00:02:01.800 --> 00:02:05.070 align:middle line:84% and public officials, including President Donald Trump, 00:02:05.070 --> 00:02:07.980 align:middle line:84% has led to fears hackers could wreak havoc 00:02:07.980 --> 00:02:10.740 align:middle line:84% with the November election or otherwise 00:02:10.740 --> 00:02:12.930 align:middle line:90% compromise national security. 00:02:12.930 --> 00:02:17.190 align:middle line:84% After the day's chaos, Twitter CEO Jack Dorsey said quote, 00:02:17.190 --> 00:02:19.330 align:middle line:90% "tough day for us at Twitter. 00:02:19.330 --> 00:02:22.940 align:middle line:84% We all feel terrible this happened." 00:02:22.940 --> 00:02:24.000 align:middle line:90%