Marriott hotels experience one of the largest data breaches in history, compromising the data of 500 million guests, illustrating the need for secure and private payment methods like Dash.

The breach, which affected a statistically significant portion of the world’s population, reportedly began as early as 2014. The hack is one of the most significant in history, dwarfing the Equifax hack of last year, which exposed over 200,000 credit card numbers. According to a notice by Marriott posted on the 30th of November, the breach includes a wide variety of guest information including contact details and even passport numbers:

“Marriott has not finished identifying duplicate information in the database, but believes it contains information on up to approximately 500 million guests who made a reservation at a Starwood property. For approximately 327 million of these guests, the information includes some combination of name, mailing address, phone number, email address, passport number, Starwood Preferred Guest (“SPG”) account information, date of birth, gender, arrival and departure information, reservation date, and communication preferences.”

In addition to the above-mentioned data, many customers also had their payment information exposed, including credit card information possibly sufficient to make fraudulent purchases:

“For some, the information also includes payment card numbers and payment card expiration dates, but the payment card numbers were encrypted using Advanced Encryption Standard encryption (AES-128). There are two components needed to decrypt the payment card numbers, and at this point, Marriott has not been able to rule out the possibility that both were taken.”

While the precise number of individuals whose payment information was compromised was not disclosed by Marriott, as many as hundreds of millions may have had their financial information exposed, potentially leading to mass fraud and identity theft.

Dash is one of the only private and secure payment methods available for major travel purchases

The Marriott breach underscores the importance of seeking secure methods of payment to prevent compromise of financial information, such as cryptocurrency. With credit cards and other centralized payment systems, user funds can be withdrawn or charges made without user consent, making compromise of payment information especially dangerous. Cryptocurrency, in contrast, gives third parties and merchants no ability to withdraw funds, and instead all payments must be initiated on the user end. Additionally, the only information logged by merchants is payment address, which alone reveals very little on the customer’s finances. However, while merchants and malicious attackers are not able to obtain access to funds from payment information, Princeton University research reveals that Bitcoin and other similarly transparent cryptocurrencies may be vulnerable to privacy attacks through associating payment addresses with emails and other personal information used in online shopping. This makes cryptocurrencies with advances privacy features, such as Dash, Zcash, and Monero, much more attractive options.

Dash in particular stands out in this regard, as in addition to providing superior privacy, it is also accepted as a form of payment by popular travel website, as well as by gift voucher service BitRefill, which sells gift codes to many travel-based services such as and Uber, including a 10% discount exclusively for Dash payments. Dash is the only payment method presently accepted by these services that offers advanced privacy, making it possibly the best private and secure payment method for travel at the moment.

Wide adoption of more secure payment methods may obsolete credit cards

More popular payment systems, such as credit cards and payment apps, currently hold the edge due to their strong foothold in the payments space, despite their drawbacks. However, once secure methods such as cryptocurrency become widely used, their advantage over credit cards will likely become more apparent, potentially obsoleting them as consumers default to safer forms of purchasing goods and services.

Dash currently has one of cryptocurrency’s most impressive levels of adoption, with nearly 4,300 Dash-accepting businesses around the world listed on DiscoverDash alone. Nearly 2,400 of these are located in Venezuela, a country suffering from hyperinflation issues and economic collapse, while Colombia counts nearly 200, making Latin America a hotspot for Dash adoption that may be one of the world’s first locations to see mass use of cryptocurrency.