Yahoo is introducing new technology to its search engine which will warn users if they are about to click on a website that hosts viruses, spyware and spam.
SearchScan uses security firm McAfee’s SiteAdvisor technology to warn users about “potentially risky sites”.
The service, which is switched on by default, produces an on-screen alert.
“Our goal is to protect users by allowing them to make a more informed decision about the sites they visit,” said Yahoo’s Priyank Garg.
Rival firm Google introduced similar technology in 2006.
Yahoo’s service will warn users about three types of risk:
- Browser exploits: Sites that can harm a user’s computer or install malware simply by visiting the site. Any such sites or pages included in McAfee’s data will be removed from search results automatically.
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Dangerous downloads: SearchScan will display warnings next to search results for sites that offer potentially dangerous software, such as viruses, spyware or adware.
- Unsolicited e-mail: SearchScan will alert users to scanned sites that send unsolicited e-mails or inappropriately share e-mail addresses with third parties.
Viruses, spyware and adware programs are often “hidden” inside innocuous-looking programs such as screensavers and toolbars.
Industry analysts IDC estimate that 67% of all computers have some form of spyware installed without a user’s knowledge.
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As anyone who has had the pleasure of doing web design and development through marketing agencies knows, Flash tends to be wildly popular among clients and wildly unpopular among, well, pretty much everyone else. Part of the reason for this is because Flash is so inherently un-Googleable; anything that goes into a Flash-only site is basically invisible to search engines and therefore, the world. That will no longer be the case, however, as Adobe announced today that it has teamed up with Google and Yahoo to make Flash files indexable by search engines.
This announcement has been a long time coming, as Flash developers have been wishing for ways to make their content searchable for close to a decade. Adobe acknowledges this in its announcement, saying that although search engines are able to index static text and links within Flash SWF files, “[Rich Internet Applications] and dynamic Web content have been generally difficult to fully expose to search engines because of their changing states—a problem also inherent in other RIA technologies.”
This announcement may also result in some major usability changes (for the better) for Flash on the web. In a post to its Webmaster Central Blog, Google wrote that it can now index all kinds of textual content in SWF files, like that included in Flash gadgets, buttons, menus, entirely self-contained Flash web sites, “and everything in between.” Google can now also follow URLs embedded within Flash files to add to the crawling pipeline. This new indexing technology does not, however, include FLV files (video files that are found on sites like YouTube) because those are generated as videos and don’t contain any text elements like an SWF file does.
Google says it’s able to do this by developing an algorithm that “explores Flash files in the same way that a person would,” by clicking buttons and manually going through Flash content. “Our algorithm remembers all of the text that it encounters along the way, and that content is then available to be indexed,” wrote the company. “We can’t tell you all of the proprietary details, but we can tell you that the algorithm’s effectiveness was improved by utilizing Adobe’s new Searchable SWF library.”
Of course, Google (and eventually Yahoo) won’t be able to index everything embedded within a Flash file—at least not yet. Anything that is image-related, including text that is embedded into images, will be invisible to the search engines for the time being. Google also noted that it can’t execute certain JavaScripts that may be embedded into a Flash file, and that while it indexes content that is contained in a separate HTML or XML file, it won’t be counted as part of the content in the Flash file. These are all issues that are being worked on, however, and are likely to change in the future.
Yahoo is also working with Adobe to index SWF files, but doesn’t appear to be as far along as Google just yet. One player that is noticeably missing is Microsoft, though. From Adobe’s announcement and the language used by Google, it appears as if each search engine has to work with Adobe to make this possible—meaning that Microsoft has either been excluded by Adobe for this round or has decided to voluntarily sit this one out. Either way, with searchable SWF files down, usability experts can now focus all of their attention on other Flash-related concerns, like blatant design perversion and excessive animation abuse.
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Microsoft has offered to buy the search engine company Yahoo for $44.6bn (£22.4bn) in cash and shares.
The offer, contained in a letter to Yahoo’s board, is 62% above Yahoo’s closing share price on Thursday.
Yahoo cut its revenue forecasts earlier this week and said it would have to spend an additional $300m this year trying to revive the company.
It has been struggling in recent years to compete with Google, which has also been a competitor to Microsoft.
“We have great respect for Yahoo, and together we can offer an increasingly exciting set of solutions for consumers, publishers and advertisers while becoming better positioned to compete in the online services market,” Microsoft chief executive Steve Ballmer said.
Chairman quit
There has not yet been any comment from Yahoo.
Its chief executive, Jerry Yang, announced on Tuesday that he intended to lay off 1,000 staff as part of a restructuring plan.
Terry Semel, who stepped down as chief executive last June, also quit as non-executive chairman on Thursday.
Microsoft said that Yahoo shareholders could choose to receive either cash or shares.
Yahoo shares have fallen 46% since reaching a year-high of $34.08 in October. They rose 54% in pre-market trading.
“Ultimately this corporate marriage was forced by the rise of Google, which has grown into a serious competitor for both Microsoft as a software company and Yahoo as an internet portal,” said Tim Weber, business editor of the BBC News website.
“It is a shotgun marriage, but the person holding the shotgun is Google.”
‘Exorbitant premium’
According to its letter to Yahoo, Microsoft attempted to enter talks about a deal a year ago, but was rebuffed because Yahoo was confident about the “potential upside” presented by the reorganisation and operational activities that were being put in place at the time.
“A year has gone by, and the competitive situation has not improved,” Microsoft’s letter said.
But there has been some concern about the price that Microsoft is offering.
“To me, the premium seems exorbitant, for what is a dwindling business,” said Tim Smalls from the brokerage firm Execution LLC.
“I personally don’t see how the synergies of Microsoft-Yahoo is going to take on Google.”
Other analysts were more enthusiastic about the offer.
“It is a fantastic offer. It is game on,” said Colin Gillis from Canaccord Adams.
“This consolidates the marketplace down to Google versus Microsoft. These two companies will be going head to head.”
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