Whenever I am approached by someone to buy my art, who I did not know, I always insist that I be paid through PayPal or Payoneer. After that, I usually never heard from those people again. Another way for an artist to protect themselves in a transaction like this is to insist to have the transaction handled by an escrow agent. The final transaction, shipping etc. is not completed until all of the funds have been verified and cleared. Any legitimate buyer or collector of art will not have a problem dealing in either manner. Anyone who objects to this way of doing business with you is someone who you do not want to do business with!
Among the forgers who have tried to make the experts look foolish is George Psalmanazar (1679?–1763). A Frenchman, he went to England where he pretended, with great success, to be a native of Formosa (Taiwan), and published a book about that island, which he had never visited. Another is William Lauder, who attempted to prove John Milton guilty of plagiarism by quoting 17th-century poets who wrote in Latin, into whose works he had interpolated Latin translations from Paradise Lost. A forgery made as a joke but taken seriously was the “Ern Malley” poems, offered to an Australian magazine in 1944 as the work of a recently dead poet. Actually it was composed by two young soldiers who wished to ridicule certain aspects of contemporary poetry.
Vilas Likhite, a Los Angeles doctor, was said to have owned a multimillion-dollar art collection inherited from an Indian maharajah. His collected works included the names of Brancusi, Lichtenstein, Chagall, Casatt, and others. The pieces he collected were best described as "museum quality." At times, he could be persuaded to sell some of these works to trusted friends for exceptionally low prices. However, a recent sale of a Casatt proved to be his downfall when he sold it to an undercover police detective who specialized in art fraud. All of Likhite's carefully documented works, some presented in a three-ring binder, were fakes.
Despite those advances, the detection of fraudulent art remains a complex undertaking. It is particularly difficult to weed out forgeries in the work of modern artists whose large numbers of works and superstar statuses make them especially attractive to those who commit fraud. Pablo Picasso, for example, was a prolific artist, creating a huge number of works on canvas and on paper as well as sculptures and ceramics. Considering his vast output and the varying styles and media in which he worked, scholars have had difficulty establishing a definitive corpus for him. The prestige associated with owning a Picasso and the difficulty of attribution, especially for a drawing, made and continues to make fraudulent representations of his work hard to police.