Showing posts with label Twitter. Show all posts
Showing posts with label Twitter. Show all posts

Monday, April 22, 2013

Twitter adopts email security protocol to crack down on hacker attacks

Twitter announced Thursday that it adopted a new security technology that's aimed at cracking down on phishing, a popular method used by hackers to send emails to users that appear to be from a Twitter-related email address in order to gain access to their account information.

The San Francisco-based company said it started using DMARC, a security protocol, earlier this month to prevent bad actors from sending emails to users from a poser Twitter.com email address. DMARC — which stands for Domain-based Message Authentication, Reporting & Conformance — cuts down on phishing attacks by allowing an email sender, such as Twitter, to indicate that their email messages are authenticated and also direct email providers to either reject a suspicious message or flag it as spam in a user's inbox, according to the security protocol's website.

In a blog post published Thursday, Twitter Postmaster Josh Aberant said the company hopes users feel more at ease when receiving emails from Twitter because of its adoption of the security technology.

"While this protocol is young, it has already gained significant traction in the email community with all four major email providers — AOL, Gmail, Hotmail/Outlook, and Yahoo! Mail — already on board, rejecting forged emails," Aberant said in the post. "We hope to see it gain more coverage for our users as even more email providers adopt it, and that it gives you more peace of mind when you get an email from us."

Twitter's announcement comes after the company revealed earlier this month that hackers attacked its website and may have gained access to personal information for roughly 250,000 users. The company said the attack "was not the work of amateurs," but "extremely sophisticated" hackers.

In recent weeks, Facebook and Apple have also come forward about getting hit by hacker attacks.

A Twitter spokesman did not respond to a request for comment on whether the company decided to adopt the new email security protocol in the wake of the attack on its user data, or following the recent reports of hacks on tech companies.

DMARC was created by a group of organizations — including Google, AOL, Comcast, Facebook and PayPayl — to craft a method for combating phishing attacks on email accounts.

Cybersecurity experts have warned that spearphishing attacks, where a user is prompted to click on a poisoned link or attachment in an email that appears to be from someone they know, could be used to compromise sensitive computer networks and systems. During a cyberattack demonstration on Capitol Hill last year with senators, senior administration officials showed how a hacker could shut down New York City's power supply via a spearphishing cyberattack.

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Sunday, March 31, 2013

NBA Star Calls Out Homophobia On Twitter

One of the most famous players in the National Basketball Association, Kobe Bryant, took to Twitter on Sunday to tell a fan to stop using ‘gay’ as an insult.

After a man identifying as Michael on Twitter tweeted “you’re gay” at another person, the LA Lakers shooting guard called them both out on Twitter — in a tweet that elicited over 3,000 retweets and 2,000 favorites:

Bryant has clearly come a long way from a few years ago, when he called the referee at a game a “fucking fag.” That action incurred a $100,000 fine from the NBA, and actually prompted the association to run a series of PSAs from famous basketball players encouraging fans to stop “using gay to mean dumb or stupid.” Someone on Twitter called Bryant out on that during Sunday’s interraction, and Bryant jumped to point out how that experience informed his opinion:

Compared to the hostility toward gay people in other sports, the NBA has been relatively progressive about LGBT issues. Just last week, Denver Nuggets player Kenneth Faried came out for marriage equality in his team’s state of Colorado, and major NBA figureheads, such as former All-Star Charles Barkley, have voiced support for same-sex marriage, acknowledging that, “I had gay teammates.”


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Wednesday, March 6, 2013

UPDATE 1-Second Twitter hoax in two days smacks another stock

(Adds details, comments from traders, recasts lead)

NEW YORK, Jan 30 (Reuters) - Sarepta Therapeutics Inc became the second company in as many days see its shares plunge as a result of a Twitter hoax on Wednesday after a user posed as an influential short-seller and alleged improprieties at the biopharmaceutical company.

Sarepta Therapeutics shares plummeted 9.9 percent in a matter of seconds after someone with the Twitter user name zcitreonresearc alleged improprieties at the company.

The drop mirrored a similar incident on Tuesday, when Audience Inc fell more than 25 percent following tweets that at a glance looked to be from Muddy Waters, another short-selling firm.

Just as Muddy Waters confirmed it did not send such a tweet about Audience, so too did Andrew Left, the California-based investor who runs Citron, said his company did not send a message about Sarepta.

The twin incidents targeted a pair of Nasdaq stocks that are not among the most actively traded on a daily basis, showing how certain company shares are vulnerable to information posted on social media networks, even if the information is misleading. Sarepta, on average, trades about 1.4 million shares a day; by contrast, average daily volume in chipmaker Intel Corp is about 52 million shares.

"You need a more volatile stock for this kind of manipulation - obviously if you were to try it on IBM it wouldn't work," said Joe Saluzzi, co-manager of trading at Themis Trading in Chatham, New Jersey. "It speaks to the structure of the market where shallow pools of liquidity can be easily pierced on bad news, even if the news is fake."

The U.S. Securities and Exchange Commission had no comment.

Twitter did not respond to an emailed request for comment on the messaging activity, but the zcitreonresearc account has been suspended. The Twitter account zMudd1waters, whose Twitter home page looks like Muddy Waters, was still active.

The tweet, with the user name "zcitreonresearc," alleged that drug trial results from the biopharmaceutical company had been tainted and doctored, according to screen shots of the posting captured by Twitter users. Sarepta was not immediately available for comments on the trading activity or the account, which has since been suspended.

Matt, a trader in San Diego who did not want to give his last name, but who goes by the handle zgiven2tweet on Twitter, said, "There's a real severity to that tweet. It's at the core of what the company is, is this one trial."

Sarepta shares recovered after the brief fall. It was trading up 1.4 percent to $27.56 on volume of about 3.5 million shares in afternoon trading. More than 700,000 shares traded in the one minute when the stock suffered its steep decline.

The company, which has a market cap of about $692 million, is volatile, moving more than 1 percent in six of the past seven sessions. It jumped 477 percent in 2012 alone.

Audience went public in May 2012 and has a market cap of $254 million as of Tuesday's closing price, rising about 15 percent so far this year. The stock's 50-day average daily volume is slightly more than 160,000 shares, but that rose to more than 800,000 on Tuesday.

"Not really an efficient market when fake twitter accounts can crash stocks," Tim McClure, equity trader at SMB Capital in New York, wrote on his Twitter page.

Shares of Audience were briefly halted on Tuesday, but Sarepta shares did not reach a threshold necessary to trigger a halt. A Nasdaq spokesperson was not available for comment.

(Additional reporting by Daniel Bases and Emily Flitter; Editing by David Gaffen and Leslie Gevirtz)


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Thursday, January 31, 2013

Twitter has 100 percent participation by new Senate

By Alicia M. Cohn - 01/17/13 04:16 PM ET

All 100 members of the 113th Senate now have a presence on Twitter, counting both unofficial and official accounts.

Sen. Roy Blunt (R-Mo.) announced in a tweet Thursday that every GOP Senator is now on Twitter thanks to the addition of a long-standing holdout, Sen. Jim Risch (R-Idaho), who joined Thursday as @SenatorRisch with a tweet opposing “increased gun control.”

Blunt’s count includes accounts that are both official and unofficial (personal accounts that senators continue to use in office unaffiliated to their official Senate pages or campaign sites).

Counting that way, 100 percent of the Senate is now using Twitter.

At least three freshman Democratic senators — Sens. Tammy Baldwin (Wis.), Martin Heinrich (N.M.) and Heidi Heitkamp (N.D.) — have yet to set up a new Twitter account to suit their new office, but still have a campaign presence with varying degrees of activity.

Blunt also welcomed several new Republican senators to Twitter in a second tweet on Thursday.

The House and Senate leadership have stepped up to promote the accounts of new members. Creating official Twitter accounts for use by their congressional office has become one of the many necessary steps new members take during their first few weeks after taking office.

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Saturday, January 26, 2013

Rep. Himes ready to race fellow Connecticut reps. for new Twitter followers

By Alicia M. Cohn - 01/15/13 09:28 AM ET

Rep. Jim Himes (D-Conn.) is ready to issue a new Twitter challenge to his fellow Connecticut representatives.

Himes commented late Monday that Sen. Chris Murphy (D-Conn.) has finally succeeded in passing Himes's follower count on Twitter, though just barely, with 8,323 compared to 8,315. 

Himes and Murphy have gotten competitive over Twitter followers in the past, notably last January, when they engaged in a race for new followers, which concluded with Himes giving to the charity of Murphy's choice. 

But since Murphy won his bid for the Connecticut Senate seat last November, Himes is considering leaving him to "his rarefied and stately senatorial realm" and taking on a couple of other Connecticut representatives instead.

So far, Reps. Elizabeth Esty (D) and Joe Courtney (D) have not responded to Himes's challenge. Esty, a new member of the House, has only about 250 followers on Twitter; Courtney has more than 5,000.

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