2011年6月5日日曜日

Weblio英和辞典・和英辞典とは

 

Weblio英和辞典・和英辞典は、研究社『新英和中辞典』『新和英中辞典』を中心に42種類の英和辞典・和英辞典、219万語の英語と254万語の日本語、合計約473万語を一度に検索できる、国内最大級のオンライン英語辞書です。英語の意味を英和辞典で調べられるだけでなく、豊富な英語の用例や、英語の発音も参照できます。基本的な英単語の意味・用例から、専門的な英語の意味・訳語まで調べることができる、英語の学習に最適な英語辞書です。

Weblio英和辞典・和英辞典の主な特長

  • 複数の英和辞典や和英辞書から、英語を一度に検索して意味を表示します。
  • 英語でも日本語でも検索できます。英単語の場合は英和辞典が、日本語の場合は和英辞典がヒットします。
  • 本文中の英語や日本語から、その言葉の意味を解説している英和辞典・和英辞典の記事にリンクしています。
  • 英語のイディオムや成句の意味を英和辞典で調べることができます。
  • 「ランダム表示」では英語や日本語の解説をランダムに選択して意味を表示します。

Weblio英和辞典・和英辞典は、こんなときに便利です

  • とにかく英語の収録語数が多い英語辞書で意味を調べたいとき
  • 英語の専門用語の意味や訳語を調べたいとき
  • 英和辞典と和英辞典の機能を同時に使って意味を調べたいとき
  • 英語の意味を調べると、解説文中の英語や日本語の意味も調べたくなるとき

GMail hacking draws FBI interest

The computer phishing scam that Google says originated in China was directed
at an unknown number of White House staff officials and set off the FBI
inquiry that began this week, according to several administration officials.

It is unclear how many White House staff members - or those of other
departments in the executive branch - might have been targeted, according to
two officials with knowledge of the investigation. But the intended victims
ranged across different functions in the White House, and were not limited
to those working on national security, economic policy or trade areas that
would be of particular interest to the Chinese government.

Administration officials said they had no evidence any confidential
information was breached, or even that many people fell for the attack by
providing information that would allow a breach of their Gmail accounts.
White House classified systems run on dedicated lines and information on
those systems, the officials said, cannot be forwarded to Gmail accounts.
But investigators are trying to determine if the attackers believed that
some staff members or other officials used their personal email accounts for
sensitive government communications.

"Right now," said one senior official, "that's a theory, not a fact."

Google disclosed the attack this week and said it targeted not only U.S.
government officials, but also human right activists, journalists and South
Korea's government. Google tracked the attack to Jinin, China, which is the
home to a Chinese military school.

But that does not necessarily mean the attackers were Chinese or related to
the government. The Chinese government denied any involvement.

The attack used emails that appeared to be tailored to their targets to
better fool their victims, a technique known as spear phishing. Recipients
were asked to click on a link to a phony Gmail login page that gave the
hackers access to their personal accounts.

The attacks come as the U.S. government considers expanding its use of
Web-based software for email, along with word processing, spreadsheets and
other kinds of documents. Google is one of the many companies vying for the
business with its Apps product, as is Microsoft . Web based email would be
vulnerable to hackers who steal login information through phishing attacks.
But Web-based systems are not necessarily any easier to hack than
traditional email, which a government agency would usually manage using its
own servers, said Larry Ponemon, chairman of the Ponemon Institute, a
computer security company in Traverse City, Mich.

Jay Carney, the White House press secretary, said Thursday that all White
House-related electronic mail was supposed to be conducted on work email
accounts to comply with the Presidential Records Act, which governs how
those communications are protected and archived. Carney said there was no
evidence that any White House accounts were compromised.

White House employees are permitted to have private email accounts, he said,
but cannot use them for work purposes.

Officials at the White House and other agencies often keep two computers in
their offices, one for unclassified work and another for classified. Very
senior officials sometimes have a "secure facility" in their homes, in which
computers and telephones are on dedicated lines and communications are
encrypted.

Given its size, Google and its Gmail system will always make an attractive
target.

Other personal email services, including Yahoo and Microsoft's Hotmail, have
faced similar attacks, according to Trend Micro , a computer security
company in Cupertino, Calif. "The types of attacks that are happening
against Web mail users aren't confined to Gmail alone and extend to other
email platforms," said Nart Villeneuve, a senior threat researcher for Trend
Micro.

Sony Pictures website hacked

Sony is not having a good year. As the company scrambles to get the
PlayStation Network and Qriocity music service back online, it's suffering
from yet another security breach.
This time it's a hacker attack on various websites associated with Sony
Pictures.
A team of individuals going by the name LulzSec, who recently managed to
deface PBS.org's homepage, announced that they have broken into
SonyPictures.com and compromised more than 1 million user accounts. An
additional 75,000 music codes and 3.5 million coupons were also uncovered.
The attack, part of a campaign known as Sownage, was announced on Twitter
and on the LulzSec website.
LulzSec said that it didn't have enough resources to copy all the data that
it was able to access. But the group did manage to grab a collection of
databases that contain thousands of usernames.
The accounts, presumably associated with any sort of registered activity on
SonyPictures.com (or its subsidiaries or partners), contain information like
passwords, email addresses, dates of birth and other Sony opt-in data.
This certainly isn't as dangerous as the information that was exposed during
the PSN hack, but it could still be used to gather access to more important
accounts elsewhere.
The scariest part of this attack isn't what was taken, but how easy it was
for the LulzSec members to take it. According to the groups own press
release, access to the main Sony Pictures website was gained using a very
basic tactic called a SQL injection.
We haven't had a chance to examine the released files to see what this
injection was, but it's likely that an out-of-date software stack and
relatively unprotected web server made passing the injection trivial.
LulzSec says that all of the information it took was unencrypted.
"Sony stored over 1,000,000 passwords of its customers in plaintext," says
the hackers' press release, "which means it's just a matter of taking it. "
Seeing as this is the second security breach of a major Sony-branded website
in just outside of a week, we have to ask: Is anyone at Sony employed to
handle web security?
Sure, managing a large number of brands and properties that are often
connected in name only has to be a challenge, not to mention the logistical
and administrative challenges of managing websites that can store millions
of user profiles. Still, that doesn't make up for what by all appearances is
an abysmal security record.
LulzSec has been on a tear, infiltrating the websites and databases for the
UK television program, "The X Factor," parts of Fox.com, Sonymusic.co.jp and
many parts of PBS.org in the past three weeks alone.
The attacks, while often juvenile in nature and execution (the
Lulzsecurity.com website plays the theme from "The Love Boat"), underscore
just how important it is for brands to keep their web servers updated,
hardened and monitored. In the age of simple publishing tools like
WordPress, it's easy for managers to underestimate the importance of having
someone on contract or on staff to keep data encrypted and protected.
We can only hope the most recent cyber attacks convince executives to think
seriously about investing in online security.