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HONG KONG nike air max 90 ultra se homme , Sept. 28
(Xinhua) -- A major loophole in mobile payment systems was discovered by researchers from the Chinese University of Hong Kong (CUHK), which made the
finding public on Thursday.
The discovery was made by the System Security Lab led by Professor Kehuan Zhang from the Department of Computer Science and Engineering at CUHK, which
has analyzed various major mobile payment systems for their security vulnerabilities.
In mobile payment transactions, the key to communications between the mobile payer and payee is a payment token that is issued by the payment service
provider to verify the payment.
Some of the most widely adopted forms of transmitting these tokens include Near-Field Communication (NFC), Quick Response Code (QR code) scans and
Magnetic Secure Transmission (MST).
According to Zhang nike air max 95
dynamic flywire homme , whose team has spent two years in conducting an in-depth study into these payment systems, apart from NFC, the remaining
formats support one-way communications only.
In other words, if the transaction fails, the payee's device is unable to notify the payer and cancel or reclaim the token already issued nike air max 95 jacquard homme , a
loophole that an active adversary can exploit.
In regard to QR Code scanning, a popular format of token verification, the study has revealed that a malicious device is able to sniff the token from
the payee's screen from afar and spend it on a different transaction.
As for MST function uniquely used by Samsung Pay, payers are required to place their handsets within a 7.5 cm distance of the payees' POS (Point of
sale) for identification.
But after a series of tests, the team discovered that the magnetic signals can be picked up from 2 meters away. A rogue in a supermarket queue can
seize the opportunity to attack and steal the token.
The team has notified relevant third party payment platforms and Zhang reminded mobile payment users to stay alert and avoid downloading mobile apps
from unknown sources.
The result of the study has also been released at USENIX Security '17 nike air vapormax grise homme , a
prestigious annual academic conference on internet security, held last month in Vancouver, Canada.
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By Oliver Trust
BERLIN, May 21 (Xinhua) -- After a disappointing season with only one title nike air vapormax noir homme , Bayern
Munich has announced it is considering to invest a record sum into new players. Uli Hoeness, president of the 2017 German champion, announced that the
club will overhaul its investment policy. More than 100 million euro will be made available to reinforce the current squad in order to attack
Europe's top dogs in football such as Real, Juventus Turin and FC Barcelona.
Hoeness made it clear that a single trophy is not enough to satisfy the club's ambitions. The 65-year old is well aware that the club will have to go
beyond its previous outlay saying, "to make our squad better we will have to buy some of the top players in world football."
After the retirement of team captain Philipp Lahm nike air vapormax rabais , who will be succeeded by keeper Manuel Neuer and Spanish midfielder Xabi Alonso, it will be hard for
Bayern to keep the same level of quality.
Having been eliminated in the Champions League as early as in the quarterfinals by Real Madrid and in the German Cup in the semifinal by Borussia
Dortmund, Hoeness said the club will be forced to pay sums that so had so far never considered but that are normal on the current transfer market. The
main task will be to find the right mixture of experienced and youth on a top level, Hoeness emphasized.
In addition to Niklas Suele and Sebastian Rudy (TSG Hoffenheim) rumors abound that international stars such as Alexis Sanchez (Arsenal) and Marco
Verratti (Paris St. Germain) and FC Schalke's young midfielder Leon Goretzka are Bayern targets. "If Bayern wants a player we'll definitely invest
what is needed," Hoeness said.
Additional investments will increase expectations when it comes to head coach Carlo Ancelotti. The 57-year old Italian star coach's second season is
considered to be his last chance to satisfy the demands of the Bavarian club. For now nike air max 2017 bleu homme , the club's
top management of Hoeness and CEO Karl-Heinz Rummenigge are willing to overlook the coach's lenient working style and his preference for experienced
players over budding stars like Joshua Kimmich or Renato Sanches.
Insiders are saying that Ancelotti will be required to find a proper assistant to fill the gap left by Paul Clement's departure and that he will have
to search for more youngsters. A lack of game time, combined with the coach' s standard training methods that do not help to develop talented young
players tactically and technically have resulted in a lost year for the German international Kimmich, as well as for Sanches and Kingsley Coman.
Bayern's leading officials want to prevent Kimmich and others to go through another year like the last one.
It is an open secret that Bayern are keeping a close eye on Julian Nagelsmann, the 29-year old coach of TSG Hoffenheim, who finished a remarkable
season as fourth in the table. Rumors seem to suggest that Bayern's management expect Ancelotti to stay with the club for one more year and then
depart if he is not willing to accept the demanded changes.
The club also recently opened its youth academy. 70 million euro have been invested and Hoeness expects results within the next few years. Since. Cheap Jerseys China Cheap Jerseys China Wholesale Soccer Shirts Free
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