There’s a new law on data protection in Russia, and under its provisions, information for web site owners should not be accessible online. The .ru WHOIS database has almost three years to fulfill the law requirements (until January 1, 2010), but Ru-Center, (largest registrar for .ru), says they have discussed the issue with RIPN (the technical contact for .ru) may be ready to implement it in the coming months.
You can read unofficial translation of the law here (PDF), or the original – here (in Russian, html).
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