As gatekeepers of the world wide web, internet service providers (ISPs) play a vital role in reducing spam, but lack of consensus over how to tackle the problem has led to a variety of strategies against it.
However, that is set to change with a "get tough" policy adopted at a meeting of the London Internet Exchange (LINX), which handles 90 percent of the UK traffic between ISPs.
Under the new policy, 150 ISPs have agreed to shut down Web sites run by spammers. These include content sites referred to in spam e-mails or sites that sell spamming tools, such as CD-ROMs containing millions of illegally collected e-mail addresses.
LINX regulation officer Malcolm Hutty said the policy represents part of an ongoing strategy against spammers. "It won't be the end of spam, obviously, but it will make life more difficult for them."
But the policy also requires getting ISPs to face up to the legal issues around closing spammers' sites. According to LINX, this will encourage ISPs to rewrite contracts with customers to include clauses that will allow them to close down sites supporting spam.
LINX has had some success with a policy it released five years ago. The following year it was endorsed by RIPE (Reseaux IP European), an international forum that manages the internet. As a result of the policy, ISPs tightened up the ways their mail servers could be illegally used by spam-mers via "open relays."
LINX estimates that only about 1 percent of spam originates in the UK, and although many spammers are based in the US, they use mail servers in other countries.
LINX is pinning its hopes on the new anti-spam task force set up by the OECD (Organization for Economic Cooperation and Development), which will take input from governments and meet for a second time on Sept. 9 in Korea.
But many in the security industry remain concerned that spammers are always one step ahead. "This is encouraging, but unfortunately spammers are like cockroaches and it will only slow them down for so long. They will re-host their sites and find new ways to get their spam out," said James Cowper, a senior technology consultant at Mirapoint, a messaging security vendor.
"This won't prove in any way effective unless they can persuade their European and global counterparts to follow suit," said Nick Scales CEO of managed e-mail service provider Avec-ho.com.
A scheme to make it harder for spammers to forge e-mail addresses is gathering pace. Known as Sender Policy Framework (SPF), it has been endorsed by Microsoft Hotmail, Yahoo and Google's Gmail. SPF works by ensuring that incoming e-mail is identified against new Domain Name Server databases. In essence, it is as if your ISP is telling other ISPs that if they receive e-mail from you from any other server than its own, it is a fake.
Many agree that widespread adoption of SPF could make it easier to identify spam, worms, viruses and "phishing" scams, in which spammers simulate e-mails from banks to gather password or credit card data.
The beauty for users is that there is no work to do, since the databases are created by ISPs and domains share data on acceptable users.
In addition, 80 members of the US-based E-mail Service Providers Coalition recently gathered at Microsoft's headquarters near Seattle for a summit on Sender ID, an authentication system that combines Microsoft's Caller-ID e-mail technology with SPF.
But Michael Chissick of Field Fisher Waterhouse, says that implementing Sender ID in Europe might not be straightforward.
"It may be that ISPs will need subscribers' permission to use this because of our laws on data protection and human rights," Chissick said. "There is also the matter of what ISPs do when they block mail on behalf of subscribers. What if it is mail that you wanted and you can prove you suffered a loss by not receiving it? The ISP may end up being liable."
Super Typhoon Kong-rey is the largest cyclone to impact Taiwan in 27 years, the Central Weather Administration (CWA) said today. Kong-rey’s radius of maximum wind (RMW) — the distance between the center of a cyclone and its band of strongest winds — has expanded to 320km, CWA forecaster Chang Chun-yao (張竣堯) said. The last time a typhoon of comparable strength with an RMW larger than 300km made landfall in Taiwan was Typhoon Herb in 1996, he said. Herb made landfall between Keelung and Suao (蘇澳) in Yilan County with an RMW of 350km, Chang said. The weather station in Alishan (阿里山) recorded 1.09m of
NO WORK, CLASS: President William Lai urged people in the eastern, southern and northern parts of the country to be on alert, with Typhoon Kong-rey approaching Typhoon Kong-rey is expected to make landfall on Taiwan’s east coast today, with work and classes canceled nationwide. Packing gusts of nearly 300kph, the storm yesterday intensified into a typhoon and was expected to gain even more strength before hitting Taitung County, the US Navy’s Joint Typhoon Warning Center said. The storm is forecast to cross Taiwan’s south, enter the Taiwan Strait and head toward China, the Central Weather Administration (CWA) said. The CWA labeled the storm a “strong typhoon,” the most powerful on its scale. Up to 1.2m of rainfall was expected in mountainous areas of eastern Taiwan and destructive winds are likely
The Central Weather Administration (CWA) yesterday at 5:30pm issued a sea warning for Typhoon Kong-rey as the storm drew closer to the east coast. As of 8pm yesterday, the storm was 670km southeast of Oluanpi (鵝鑾鼻) and traveling northwest at 12kph to 16kph. It was packing maximum sustained winds of 162kph and gusts of up to 198kph, the CWA said. A land warning might be issued this morning for the storm, which is expected to have the strongest impact on Taiwan from tonight to early Friday morning, the agency said. Orchid Island (Lanyu, 蘭嶼) and Green Island (綠島) canceled classes and work
KONG-REY: A woman was killed in a vehicle hit by a tree, while 205 people were injured as the storm moved across the nation and entered the Taiwan Strait Typhoon Kong-rey slammed into Taiwan yesterday as one of the biggest storms to hit the nation in decades, whipping up 10m waves, triggering floods and claiming at least one life. Kong-rey made landfall in Taitung County’s Chenggong Township (成功) at 1:40pm, the Central Weather Administration (CWA) said. The typhoon — the first in Taiwan’s history to make landfall after mid-October — was moving north-northwest at 21kph when it hit land, CWA data showed. The fast-moving storm was packing maximum sustained winds of 184kph, with gusts of up to 227kph, CWA data showed. It was the same strength as Typhoon Gaemi, which was the most