G20 made a commitment to eliminate bank secrecy

http://www.oecd.org/tax/oecd-secretary-general-tax-report-g20-finance-ministers-february-2016.PDF
page 11
In recognition of the imminent commencement of AEOI, governments are seeing taxpayers move
quickly to bring their off-shore tax affairs into compliance.
Under a series of voluntary disclosure programmes and similar initiatives targeting offshore evasion, thirty countries have already
identified additional revenue totalling more than EUR 48 billion in the past 7 years.