Burberry is implementing a "fundamentally different way of using data throughout the business" in an effort to build a "single global view" of its customers after seeing gains in sales and profit following its decision to invest in insight last year. CEO and chief creative officer Christopher Bailey said Burberry will continue to invest in data and insight in order to "serve customers better." He added that this will include "more personalised service and targeted and responsive marketing behaviour."

The Unilever Foundry has launched a new project titled ReHack 2015 designed to fuel innovation in sustainable ecommerce. UK-based tech companies and start-ups, digital agencies, retailers and brand owners are invited to participate in the ReHack 2015 to compete to develop technologies that can make ecommerce a force for good. Launched in partnership with Hoxton Mix Collective, which matches startups and small businesses with corporate leaders, the ReHack 2015 event will be held over 25 and 26 of June in east London.

News that Blinkx, the video advertising company, posted a pre-tax loss of $25 million this week for the year to the end of March 2015 should raise alarm bells for those in the online advertising business. The industrywide concerns about the reliability of current online data in terms of video views are not dissipating. It has forced Blinkx to invest in more partnerships with verification groups including Nielsen, Integral Ad Science, Forensiq and DoubleVerify, which has dramatically impacted its bottom line.

Legal & General, the financial services group, has appointed the WPP agencies J Walter Thompson London, Wunderman and Mindshare to handle its creative and media business. Periscopix, the Merkle agency, has been selected to work on paid search and programmatic display. Engine, Iris, OMD, Fundamental Media and Jellyfish, a digital marketing agency, were involved in the pitch process. Legal & General called the pitch in January, saying that it wanted to take its brand and marketing "to the next level."

Grey will now take on the global creative accounts for Venus, Braun and Art of Shaving brands. Abbott Mead Vickers/BBDO previously held the retained creative account for Braun, although it had not produced any work in recent years. The move includes the global shopper marketing work, which moves from Omnicom's Integer Group to Grey Shopper. Grey already has the global Gillette advertising account, which it won in 2013, ending BBDO's 47-year relationship with the shaving brand.

Unicef is hoping that low-cost wearable tech might help solve child health problems in developing countries. The charity has partnered with British chipmaker ARM and design firm Frog to launch the "Wearables for Good" challenge. It is asking designers to come up with ideas for cheap, low-power gadgets that can save lives. Unicef wants a way to monitor and measure vital signs and other biological stats, keep track of environmental conditions, and push out alerts. Devices that can track patients without being worn will also be considered.

Brand engagement specialists Havas Sport & Entertainment have announced its merger with brand entertainment agency Cake to form a new UK hub for entertainment and content. Based in Covent Garden, London, the newly integrated Havas SE Cake will be led by Cake co-founder Adrian Pettett, who will in turn report directly to Lucien Boyer, CEO of Havas Sport & Entertainment. The combined entity will have a turnover of GBP12m.

Brands could be able to connect with consumers via WhatsApp, according to Facebook's CFO David Wehner. Speaking at the J.P. Morgan global technology, media and telecom conference on Monday, Wehner said Facebook is currently "doing experiments" with Messenger to allow brands to contact consumers. The trials include using Messenger for customer service, letting users chat to brands about things such as online orders. He said he also sees "opportunities" in bringing such a service to WhatsApp.

Visa has revealed that its digital payment service Checkout will now be available across online merchants including Dunkin' Donuts, Pizza Hut, Fandango and Roots. The online payment program, which launched less than a year ago, currently boasts four million customer accounts and is available at more than 125,000 merchants. "With screens and keyboards getting smaller and smaller, checking out online must be incredibly simple and easy," said Sam Shrauger, Visa's senior vice president of digital solutions.

The Direct Marketing Association (DMA) has warned that charities must adapt their marketing approach following the apparent suicide of a 92-year-old pensioner who received an "overwhelming" number of letters and calls asking for donations. The body of Olive Cooke was recovered by police from the Avon gorge in Bristol last week, and friends of the pensioner have since spoken to the media about the "exhausting" requests Cooke received for money from charities.