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discussion Sendgrid Under Siege from Hacked Accounts

Email service provider Sendgrid is grappling with an unusually large number of customer accounts whose passwords have been cracked, sold to spammers, and abused for sending phishing and email malware attacks. Sendgrid's parent company Twilio says it is working on a plan to require multi-factor authentication for all of its customers, but that solution may [...] [more]
krebsonsecurity.com    ESP, Spam

 antispam Massive Email Bombs Target .Gov Addresses

When Spamhaus lists a swath of Internet address space as a source of junk email, ISPs usually stop routing email for organizations within those chunks of addresses. On Sunday, Spamhaus started telling ISPs to block email coming from some of the largest email service providers (ESPs) — companies that help some of the world’s biggest brands reach customers via email. On Monday, those ESPs soon began hearing from their clients who were having trouble getting their marketing emails delivered. [...] [more]
krebsonsecurity.com    Spam, Deliverability

antispam ‘Like Cutting Off a Limb to Save the Body’

This author has spent many years chronicling the exploits of black hat spammers who use hacked computers to relay junk email. But I’ve dedicated comparatively little time delving into ways of email marketers who technically follow U.S. anti-spam laws yet nevertheless engage in spammy practices. The latter is able to ply their trade because there are thousands of Internet hosting companies operating on thin profit margins that are happy to host spammy but lucrative clients. This is the story of how on [...] [more]
krebsonsecurity.com    Spam

antispam Feds Indict Three in 2011 Epsilon Hack

U.S. federal prosecutors in Atlanta today unsealed indictments against two Vietnamese men and a Canadian citizen in connection with what’s being called “one of the largest reported data breaches in U.S. history.” The government isn’t naming the victims in this case, but all signs point to the 2011 hack of Texas-based email marketing giant Epsilon. [...] [more]
krebsonsecurity.com    Law, Spam

antispam SpamIt, Glavmed Pharmacy Networks Exposed — Krebs on Security

Despduck said he could deliver data on hundreds of thousands of consumers who purchased pills through Glavmed’s sizable stable of online pharma shops. After many months of promising the information, Despduck finally came through with a 9-gigabyte database file that contained three years worth of financial books for the massive illicit pharmacy network. [more]
krebsonsecurity.com    Spam, Study
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