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DMARC is what one might call an emerging e-mail security scheme. There's a draft on it at draft-kucherawy-dmarc-base-04, intended for the independent stream. It's emerging pretty fast, since many of the largest mail systems in the world have already implemented it, including Gmail, Hotmail/MSN/Outlook, Comcast, and Yahoo.

The reason this matters is that over the weekend Yahoo published a DMARC record with a policy saying to reject all yahoo.com mail that fails DMARC. I noticed this because I got a blizzard of bounces from my church mailing list, when a subscriber sent a message from her yahoo.com account, and the list got a whole bunch of rejections from gmail, Yahoo, Hotmail, Comcast, and Yahoo itself. This is definitely a DMARC problem, the bounces say so. The problem for mailing lists isn't limited to the Yahoo subscribers. Since Yahoo mail provokes bounces from lots of other mail systems, innocent subscribers at Gmail, Hotmail, etc. not only won't get Yahoo subscribers' messages, but all those bounces are likely to bounce them off the lists. A few years back we had a similar problem due to an overstrict implementation of DKIM ADSP, but in this case, DMARC is doing what Yahoo is telling it to do. Suggestions: * Suspend posting permission of all yahoo.com addresses, to limit damage * Tell Yahoo users to get a new mail account somewhere else, pronto, if they want to continue using mailing lists * If you know people at Yahoo, ask if perhaps this wasn't such a good idea

The Obama administration fought a legal battle against Google to secretly obtain the email records of a security researcher and journalist associated with WikiLeaks. Newly unsealed court documents obtained by The Intercept reveal the Justice Department won an order forcing Google to turn over more than one year’s worth of data from the Gmail account of Jacob Appelbaum (pictured above), a developer for the Tor online anonymity project who has worked with WikiLeaks as a volunteer. The order also gagged Google, preventing it from notifying Appelbaum that his records had been provided to the government. The surveillance of Appelbaum’s Gmail account was tied to the Justice Department’s long-running criminal investigation of WikiLeaks, which began in 2010 following the transparency group’s publication of a large cache of U.S. government diplomatic cables. According to the unsealed documents, the Justice Department first sought details from Google about a Gmail account operated by Appelbaum in January 2011, triggering a three-month dispute between the government and the tech giant. Government investigators demanded metadata records from the account showing email addresses of those with whom Appelbaum had corresponded between the period of November 2009 and early 2011; they also wanted to obtain information showing the unique IP addresses of the computers he had used to log in to the account.

The Justice Department argued in the case that Appelbaum had “no reasonable expectation of privacy” over his email records under the Fourth Amendment, which protects against unreasonable searches and seizures. Rather than seeking a search warrant that would require it to show probable cause that he had committed a crime, the government instead sought and received an order to obtain the data under a lesser standard, requiring only “reasonable grounds” to believe that the records were “relevant and material” to an ongoing criminal investigation. Google repeatedly attempted to challenge the demand, and wanted to immediately notify Appelbaum that his records were being sought so he could have an opportunity to launch his own legal defense. Attorneys for the tech giant argued in a series of court filings that the government’s case raised “serious First Amendment concerns.” They noted that Appelbaum’s records “may implicate journalistic and academic freedom” because they could “reveal confidential sources or information about WikiLeaks’ purported journalistic or academic activities.” However, the Justice Department asserted that “journalists have no special privilege to resist compelled disclosure of their records, absent evidence that the government is acting in bad faith,” and refused to concede Appelbaum was in fact a journalist. It claimed it had acted in “good faith throughout this criminal investigation, and there is no evidence that either the investigation or the order is intended to harass the … subscriber or anyone else.” Google’s attempts to fight the surveillance gag order angered the government, with the Justice Department stating that the company’s “resistance to providing the records” had “frustrated the government’s ability to efficiently conduct a lawful criminal investigation.”

Google accused the government of hyperbole and argued that the backlash over the Twitter order did not justify secrecy related to the Gmail surveillance. “Rather than demonstrating how unsealing the order will harm its well-publicized investigation, the government lists a parade of horribles that have allegedly occurred since it unsealed the Twitter order, yet fails to establish how any of these developments could be further exacerbated by unsealing this order,” wrote Google’s attorneys. “The proverbial toothpaste is out of the tube, and continuing to seal a materially identical order will not change it.” But Google’s attempt to overturn the gag order was denied by magistrate judge Ivan D. Davis in February 2011. The company launched an appeal against that decision, but this too was rebuffed, in March 2011, by District Court judge Thomas Selby Ellis, III.

European officials are demanding answers and investigations into a joint U.S. and U.K. hack of the world’s largest manufacturer of mobile SIM cards, following a report published by The Intercept Thursday. The report, based on leaked documents provided by NSA whistleblower Edward Snowden, revealed the U.S. spy agency and its British counterpart Government Communications Headquarters, GCHQ, hacked the Franco-Dutch digital security giant Gemalto in a sophisticated heist of encrypted cell-phone keys. The European Parliament’s chief negotiator on the European Union’s data protection law, Jan Philipp Albrecht, said the hack was “obviously based on some illegal activities.” “Member states like the U.K. are frankly not respecting the [law of the] Netherlands and partner states,” Albrecht told the Wall Street Journal. Sophie in ’t Veld, an EU parliamentarian with D66, the Netherlands’ largest opposition party, added, “Year after year we have heard about cowboy practices of secret services, but governments did nothing and kept quiet […] In fact, those very same governments push for ever-more surveillance capabilities, while it remains unclear how effective these practices are.”

“If the average IT whizzkid breaks into a company system, he’ll end up behind bars,” In ’t Veld added in a tweet Friday. The EU itself is barred from undertaking such investigations, leaving individual countries responsible for looking into cases that impact their national security matters. “We even get letters from the U.K. government saying we shouldn’t deal with these issues because it’s their own issue of national security,” Albrecht said. Still, lawmakers in the Netherlands are seeking investigations. Gerard Schouw, a Dutch member of parliament, also with the D66 party, has called on Ronald Plasterk, the Dutch minister of the interior, to answer questions before parliament. On Tuesday, the Dutch parliament will debate Schouw’s request. Additionally, European legal experts tell The Intercept, public prosecutors in EU member states that are both party to the Cybercrime Convention, which prohibits computer hacking, and home to Gemalto subsidiaries could pursue investigations into the breach of the company’s systems.

According to secret documents from 2010 and 2011, a joint NSA-GCHQ unit penetrated Gemalto’s internal networks and infiltrated the private communications of its employees in order to steal encryption keys, embedded on tiny SIM cards, which are used to protect the privacy of cellphone communications across the world. Gemalto produces some 2 billion SIM cards a year. The company’s clients include AT&T, T-Mobile, Verizon, Sprint and some 450 wireless network providers. “[We] believe we have their entire network,” GCHQ boasted in a leaked slide, referring to the Gemalto heist.

Gagging orders in the FBI's National Security Letters are all above board and constitutional, a California court has ruled. These security letters are typically sent to internet giants demanding information on whoever is behind a username or email address. Crucially, these requests include clauses that prevent the organizations from warning specific subscribers that they are under surveillance by the Feds. Cloudflare and Credo Mobile aren't happy with that, and – with the help of rights warriors at the EFF – challenged the gagging orders. Despite earlier successes in their legal battle, the 9th US Circuit Court of Appeals ruled [PDF] on Monday that the gagging orders do not trample on First Amendment rights.

The FBI dishes out thousands of National Security Letters (NSLs) every year; they can simply be issued by a special agent in charge in a bureau field office, and don’t require judicial review. They allow the Feds to obtain the name, address, and records of any services used – but not the contents of conversations – plus billing records of a person, and forbid the hosting company from telling the subject, meaning those under investigation can’t challenge the decision. It used to be the case that companies couldn’t even mention the existence of the NSL system for fear of prosecution. However, in 2013 a US district court in San Francisco ruled that such extreme gagging violated the First Amendment. That decision came after Google, and later others, started publishing the number of NSL orders that had been received, in defiance of the law. In 2015 the Obama administration amended the law to allow companies limited rights to disclose NSL orders, and to set a three-year limit for the gagging order. It also set up a framework for companies to challenge the legitimacy of NSL subpoenas, and it was these changes that caused the appeals court verdict in favor of the government.